AudioCircle

Industry Circles => NuPrime Audio => Topic started by: Juventino on 11 Nov 2015, 06:48 am

Title: DAC-9
Post by: Juventino on 11 Nov 2015, 06:48 am
Whats the latest info on the DAC-9 your side of the ocean?

I know its the AKM Dac chip.
Dac and Pre.

But what makes it special?
Title: Re: DAC-9
Post by: rustydoglim on 11 Nov 2015, 12:49 pm
Most important points about DAC-9:
1. Enhanced SRC (Sampling Rate Conversion) IC chip provides FPGA processing with ultra-low jitter and distortion. Input signal up sampled to mega hertz before converting to target sampling rate for best jitter reduction.
2. AKM4490EQ DAC supporting USB PCM 768 and DSD256, that is also capable of decoding DoP formats via coaxial and optical inputs
3. Designed for studio recording professional with high precision AES and XLR outputs.

Inputs:

1 x USB PCM / DSD Digital (PCM up to 384KHz & DSD UP TO DSD256 )
1 x Coaxial Digital S/PDIF (PCM up to 192KHz, DoP format DSD64)
1 x Optical Digital S/PDIF (PCM up to 192KHz, DoP format DSD64)
1 x Bluetooth Receiver or WiFi (optional) input
1 x AES Digital balance input
1 x Analog Stereo RCA

Outputs:

1 x Stereo RCA analog out
1 x Stereo XLR analog out
1 x Optical S/PDIF out

USB Sampling Rates: 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz, 352.8KHz, 384KHz and DSD 2.8MHz, 5.6MHz, 11.2MHz
S/PDIF Sampling Rates: 44.1KHz, 48KHz, 88.2KHz, 96, 176.4KHz, 192KHz, 384KHz (Coaxial)
Maximum Sampling Rate: 32-bits
Bit Resolution: 16-32 bits
THD+N: 0.0015%
Frequency Response: 10Hz to 80kHz
Dynamic range: > - 113 dB

Features:
•   NuPrime SRC IC chip provides FPGA processing with ultra-low jitter and distortion
•   AKM Newest Generation: High Sound Quality Premium 32-bit Stereo DAC (AK4490 EQ)
•   NuPrime vibration-free isolation feet (patent pending*)
•   State-of-the-art DAC supporting USB PCM 384 and DSD256, that is also capable of decoding DoP formats via coaxial and optical inputs
•   Extension port for Bluetooth dongle and WiFi audio streaming (optional)
•   Full microprocessor control with memory retention
•   Five digital inputs and one stereo input for complete system flexibility
•   Supports DSD native playback by ASIO2.1 and DoP method
•   Ultra-low-noise JFETs in the input stage for the lowest possible noise floor
•   Volume adjustment in 99 precise 0.5dB increments
•   Advanced, thin-film switched-resistor ladder network for controlling volume, with a single resistor in the signal path at any volume setting
•   Individually adjustable volume on each input for precise level matching of sources
•   Exclusive driver software for Windows
•   Standard driver software for Mac
•   Asynchronous transfer mode
•   Very low power consumption on Standby Mode
•   Available in black or silver anodized aluminum finish
•   Includes remote control
Title: Re: DAC-9
Post by: kevb on 11 Nov 2015, 12:51 pm
Interesting....how does this compare to the DAC section of the IDA-8 which I am really enjoying?
Title: Re: DAC-9
Post by: rustydoglim on 11 Nov 2015, 12:53 pm
What's the difference between DAC-9 and DAC-10H?
To get DAC-10H performance, you would need to pair up DAC-9 + HPA-9.
Few people realize the power of DAC-10H headphone amp, it can even drive high efficiency speaker!
They sounded different.  If you like slightly warmer sound, DAC-9 is the one.

It is a tough choice between the two. If you want the flexibility with separate headphone amp and DAC, then DAC-9 is the obvious choice.
Title: Re: DAC-9
Post by: kevb on 11 Nov 2015, 12:58 pm
What's the difference between DAC-9 and DAC-10H?
To get DAC-10H performance, you would need to pair up DAC-9 + HPA-9.
Few people realize the power of DAC-10H headphone amp, it can even drive high efficiency speaker!
They sounded different.  If you like slightly warmer sound, DAC-9 is the one.

It is a tough choice between the two. If you want the flexibility with separate headphone amp and DAC, then DAC-9 is the obvious choice.

Thank you.  That makes it a tough call for me.  I love how the IDA-8 positively glows with my Equation speakers.  No more warmth needed at all.  But I love warmth.....as long as there is resolution, which I know will be there with the DAC-9.
Title: Re: DAC-9
Post by: rustydoglim on 11 Nov 2015, 12:58 pm
The DAC in IDA-8 comes from the ESS 9018 family. So it has the ESS neutral and clean sound.  IDA-8 has warmer sound than IDA-16 because we match it with a different amp design.
But in order to have a warmer sounding DAC alone, we went with the new AKM DAC.

Now if you are a tube enthusiasts and want to get rid of tube amp, then you can go with the new STA-9 and DAC-9.
The STA-9 sounded rich and tube-like, but very fast and powerful.  Come on, 290W in a bridged mono configuration inside a 8.5" chassis is probably the most powerful amp on the market.
Title: Re: DAC-9
Post by: kevb on 11 Nov 2015, 01:01 pm
The DAC in IDA-8 comes from the ESS 9018 family. So it has the ESS neutral and clean sound.  IDA-8 has warmer sound than IDA-16 because we match it with a different amp design.
But in order to have a warmer sounding DAC alone, we went with the new AKM DAC.

Now if you are a tube enthusiasts and want to get rid of tube amp, then you can go with the new STA-9 and DAC-9.
The STA-9 sounded rich and tube-like, but very fast and powerful.  Come on, 290W in a bridged mono configuration inside a 8.5" chassis is probably the most powerful amp on the market.

That is exactly the sound I love....fast, powerful, and warm, with all the details still there.  This sounds like my next purchase!  :thumb: 

EDIT: Does the STA-9 have balanced inputs? 
Title: Re: DAC-9
Post by: rustydoglim on 11 Nov 2015, 01:29 pm
Sure. See https://picasaweb.google.com/106836432394752820607/STA902?authuser=0&feat=directlink (https://picasaweb.google.com/106836432394752820607/STA902?authuser=0&feat=directlink)
Title: Re: DAC-9
Post by: Juventino on 11 Nov 2015, 01:46 pm
What's the difference between DAC-9 and DAC-10H?
To get DAC-10H performance, you would need to pair up DAC-9 + HPA-9.
Few people realize the power of DAC-10H headphone amp, it can even drive high efficiency speaker!
They sounded different.  If you like slightly warmer sound, DAC-9 is the one.

It is a tough choice between the two. If you want the flexibility with separate headphone amp and DAC, then DAC-9 is the obvious choice.

Thank you for the specs of the DAC-9 much appreciated.

Was there a DAC-10 with out the headphone released?

If so was it just the ESS chip difference?
Title: Re: DAC-9
Post by: rustydoglim on 11 Nov 2015, 01:56 pm
DAC-10 comes as DAC-10 or DAC-10H (H = headphone amp).
DAC-10 can become DAC-10H by upgrading the front panel which contains the headphone amp.

Because of the DAC with headphone amp, so the headphone amp of DAC-10H is more sophisticated than HPA-9 where it has two levels of gain control (H, L and RCA, XLR).  HPA-9 only has H and L gain control.
Title: Re: DAC-9
Post by: Juventino on 11 Nov 2015, 02:14 pm
 :beer: Thank you
Title: Re: DAC-9
Post by: kevb on 11 Nov 2015, 03:08 pm
Wow, so the DAC-9 will have remote control, balanced output, S/PDIF optical output up to 24/192 AND it will have the bluetooth streaming capability?  Fantastic!!   :thumb:   I will have to get in touch with Rick to get on any pre-order list....

Any chance we see a headphone version (DAC-9H?) like the DAC-10/10H? 

I will be saving up my pennies for the ST-10 to pair with it.  But I may have to start with the STA-9....
Title: Re: DAC-9
Post by: Juventino on 12 Nov 2015, 10:13 am
Hi Justin
One more question with the DAC-9 is there a way to by pass the PREAMP section of the Dac-9 to use it as DAC only?
Not use the volume control of the DAC-9?
Title: Re: DAC-9
Post by: franz159 on 12 Nov 2015, 11:14 pm
I might have missed it, but is any info available about pricing and planned availability?
Title: Re: DAC-9
Post by: kevb on 13 Nov 2015, 12:19 pm
I might have missed it, but is any info available about pricing and planned availability?

Not quite sure on the availability date, but the price I have seen is $749.  I am interested in the date too.  I will be picking one up as soon as it comes out.
Title: Re: DAC-9
Post by: Juventino on 13 Nov 2015, 12:48 pm
Not quite sure on the availability date, but the price I have seen is $749.  I am interested in the date too.  I will be picking one up as soon as it comes out.

From what I have heard release should be beginning to mid December
Title: Re: DAC-9
Post by: mcgsxr on 13 Nov 2015, 02:46 pm
Although my dollar (CDN) is falling rapidly against the USD, this piece looks to be fantastic value.

I presently use an old NuForce AVP-16 as my 2 channel preamp.  In bypass mode it provides excellent sound via the XLR outputs to my Crown amp.

To think that a matured version of the volume control I am presently enjoying, in addition to tremendous DAC capability is being offered at a reasonable price is awesome.  Love the DAC/PRE combo idea, and the ability to process all my current music file formats plus the DSD options is appealing.  Seeing the supported USB formats is very tempting.

I will have to think a lot about my current setup.  Great job NuPrime!
Title: Re: DAC-9
Post by: kevb on 13 Nov 2015, 04:21 pm
Although my dollar (CDN) is falling rapidly against the USD, this piece looks to be fantastic value.

I presently use an old NuForce AVP-16 as my 2 channel preamp.  In bypass mode it provides excellent sound via the XLR outputs to my Crown amp.

To think that a matured version of the volume control I am presently enjoying, in addition to tremendous DAC capability is being offered at a reasonable price is awesome.  Love the DAC/PRE combo idea, and the ability to process all my current music file formats plus the DSD options is appealing.  Seeing the supported USB formats is very tempting.

I will have to think a lot about my current setup.  Great job NuPrime!

Same boat here....CDN dollar tanking far too fast.  I have the IDA-8, and I am frankly blown away by it.  It scales very well to all my speakers.  Extremely good sound via USB. I am going to be an "early adopter" of the DAC-9. It fits my price point and requirements for a DAC/Pre.
Title: Re: DAC-9
Post by: rustydoglim on 13 Nov 2015, 05:11 pm
DAC-9 preamp is very high-end using switch resistor design so it won't affect your performance and if you want to "bypass" it because you have a preamp, then just fix its volume. I bet you can get rid of your external preamp.

Shipping December 7 from factory so take about 5 days to reach USA.
Title: Re: DAC-9
Post by: Juventino on 13 Nov 2015, 05:38 pm
Sounds really good.
Going to give some competitors a kick in the pants.
Definitely going to pull the trigger on this one as it keeps getting better. I just really dig deep and try get as much information as possible. Love knowing everything about an audio product I'm going to spend hard earned money on.

What's the power supply on the unit?
Do you have any info on the analogue stage?


Title: Re: DAC-9
Post by: mv on 16 Nov 2015, 07:57 am
DAC-9 preamp is very high-end using switch resistor design so it won't affect your performance and if you want to "bypass" it because you have a preamp, then just fix its volume. I bet you can get rid of your external preamp.

Shipping December 7 from factory so take about 5 days to reach USA.

Is DAC-10 better than the DAC-9?
Title: Re: DAC-9
Post by: rustydoglim on 18 Nov 2015, 06:49 pm
They are different sounding DACs.  And positioned differently.
If you want to have the best all-in-one DACs and headphone amp (the power of DAC-10H is amazing), then DAC-10H is the one. DAC-10 by itself has the clear and detailed sound characteristic of ESS 9018K2M DAC chip.  DAC-9 has the warmer AK4490EQ DAC chip.  In terms of spec, # of inputs, DAC-10 is better than DAC-9.
But if you like warmer sound, then DAC-9 to you will sound better.

In any case, these are all reference class products.
Title: Re: DAC-9
Post by: JLM on 18 Nov 2015, 09:44 pm
Hey, how about updating your link (still goes to NuForce) and the NuPrime website?   :P

Could save you answering all these generic questions. 
Title: Re: DAC-9
Post by: Armaegis on 19 Nov 2015, 09:59 am
They are different sounding DACs.  And positioned differently.
If you want to have the best all-in-one DACs and headphone amp (the power of DAC-10H is amazing), then DAC-10H is the one. DAC-10 by itself has the clear and detailed sound characteristic of ESS 9018K2M DAC chip.  DAC-9 has the warmer AK4490EQ DAC chip.  In terms of spec, # of inputs, DAC-10 is better than DAC-9.
But if you like warmer sound, then DAC-9 to you will sound better.

In any case, these are all reference class products.

Is there any way to get the warmer tonality of the DAC-9/AK4490 but also the balanced headamp of the 10H?
Title: Re: DAC-9
Post by: Juventino on 19 Nov 2015, 10:24 am
Any info on the below?

What's the power supply on the unit?
Do you have any info on the analogue stage?
Title: Re: DAC-9
Post by: John Casler on 20 Nov 2015, 07:27 am
Hey, how about updating your link (still goes to NuForce) and the NuPrime website?   :P

Could save you answering all these generic questions.


????  Interesting, they have been separated for a LONG LONG Time.

Are you using an old link?  :scratch:

http://www.nuprimeaudio.com/

Should take you straight to NuPRIME.

Also, in case you haven't read through the threads of who does what, and what goes where, NuPRIME "does" still service and support, all the NuFORCE REFERENCE gear (like Ref 9 monoblocs for example) and still manufactures and offers the REFERENCE 18, REFERENCE 20, and P-20 models.
Title: Re: DAC-9
Post by: kevb on 20 Nov 2015, 01:29 pm

????  Interesting, they have been separated for a LONG LONG Time.

Are you using an old link?  :scratch:

http://www.nuprimeaudio.com/

Should take you straight to NuPRIME.

Also, in case you haven't read through the threads of who does what, and what goes where, NuPRIME "does" still service and support, all the NuFORCE REFERENCE gear (like Ref 9 monoblocs for example) and still manufactures and offers the REFERENCE 18, REFERENCE 20, and P-20 models.

Hi John,

I believe he is referring to the website link (globe) under rusty's avatar.  It still points to the NuForce website. 
Title: Re: DAC-9
Post by: giordy60 on 20 Nov 2015, 01:35 pm
some pictures of the new DAC-9?
Title: Re: DAC-9
Post by: mervinpearce on 20 Nov 2015, 01:46 pm
some pictures of the new DAC-9?
https://picasaweb.google.com/106836432394752820607/DAC903 (https://picasaweb.google.com/106836432394752820607/DAC903)
Title: Re: DAC-9
Post by: giordy60 on 20 Nov 2015, 02:30 pm
thank you  :wink:
Title: Re: DAC-9
Post by: giordy60 on 20 Nov 2015, 02:44 pm
The AK4490 accepts PCM signals up to 768khz, how did you choose him to work up to 384kHz?
( simple curiosity )
The USB receiver is always the Xmos?
on what price range it rests?
Title: Re: DAC-9
Post by: rustydoglim on 24 Nov 2015, 08:48 pm
Our spec is not finalised and it might be 768kHz. Regardless, it is not as simple as you think by simply up sample to 768KHz and it will sound better.  The problem is that it is 1) difficult to design for converting various input freq to output freq and 2) the output filter design can be tricky. Unless you have 768kHz content, there is no point doing that, and it could sound worst.
What we have done internally is to up sample the input signals to MEGA HERTZ using a custom FPGA, and then divide down to the target freq.
This is a better design approach.
Title: Re: DAC-9
Post by: giordy60 on 25 Nov 2015, 02:41 pm
Unless you have 768kHz content, there is no point doing that, and it could sound worst.

There could be reached by oversampling software  :D
Title: Re: DAC-9
Post by: Armaegis on 25 Nov 2015, 05:32 pm
What we have done internally is to up sample the input signals to MEGA HERTZ using a custom FPGA, and then divide down to the target freq.
This is a better design approach.

Is it perchance a multiple of 2116800Hz? (I'm a math teacher; I literally just taught LCM last week, so this is curious)
Title: Re: DAC-9
Post by: rustydoglim on 27 Nov 2015, 06:35 am
There could be reached by oversampling software  :D

Hey, we have to do it in real time!
Answer another user, we stick to multiple of 44.1 since 88.2, 176.4kHz, ........ are all used by recording professionals.
Title: Re: DAC-9
Post by: Armaegis on 27 Nov 2015, 08:47 pm
I asked because if you're upsampling into the MHz range, then 2116800 is 44.1k and 48k multiplied together. It just seems like a natural step...
Title: Re: DAC-9
Post by: Juventino on 8 Dec 2015, 10:04 pm
Hello,

Are there any manuals available yet on the Dac-9 now that unit should be ready for shipping.

Would be good to get info on the power supply and the analogue output stage.

Thanks
Title: Re: DAC-9
Post by: akopperl on 19 Dec 2015, 05:54 pm
DAC-9 preamp is very high-end using switch resistor design so it won't affect your performance and if you want to "bypass" it because you have a preamp, then just fix its volume. I bet you can get rid of your external preamp.

Shipping December 7 from factory so take about 5 days to reach USA.

What is the recommended volume setting for the DAC-9 if you are connecting it to a separate preamp?  In my situation, I'll be using it purely as a DAC connected to the analogue inputs of an Arcam Receiver.

Also, does the DAC-9 convert DSD to PCM or does it process DSD natively without conversion to PCM?  From what I've read, the AKM 4490 chip is capable of processing DSD without any conversion to PCM - although, I believe some manufacturers using the AKM 4490 are still converting DSD to PCM.  I just was hoping to get some clarification regarding the DSD implementation for the DAC-9 since I have a fairly large DSD collection and the AKM 4490 chip seems to be one of the few chips that allows for separate paths for the processing of PCM and DSD.



Title: Re: DAC-9
Post by: pewe on 20 Dec 2015, 01:24 pm
Are there any pics available from the inside of the DAC 9 ?  And what does the remote look like, is it the same as for the IDA 16?
Title: Re: DAC-9
Post by: Juventino on 28 Dec 2015, 11:39 am
Has anyone received their DAC-9 yet?

Any review? what have you compared it with?
Title: Re: DAC-9
Post by: JackD on 29 Dec 2015, 03:08 am
I would suspect that the "9" series has been delayed again and no one has them otherwise John or Jason would have said something since they were supposed to ship the first week of the month.
Title: Re: DAC-9
Post by: rustydoglim on 29 Dec 2015, 01:19 pm
We have been shipping!
Order now!
Title: Re: DAC-9
Post by: JackD on 7 Jan 2016, 03:21 am
Has anyone actually received and listened to one of these yet?  Any impressions, Mark or John included.
Title: Re: DAC-9
Post by: Juventino on 7 Jan 2016, 09:10 am
i got mine yesterday but havent had enough time to listen to it.
I did get a chance to sit down for 30min at the dealer and listen to it on a pair of Avantgardes, with a Rega intergrated and it sounded smooth, soundstage open and not in your face.

When I have more time with it at home will post a review.
Title: Re: DAC-9
Post by: wellpleased on 7 Jan 2016, 03:29 pm
Has anyone actually received and listened to one of these yet?  Any impressions, Mark or John included.

I am due to receive mine tomorrow (1/8) so I will let you know my impressions in a few weeks.
Title: Re: DAC-9
Post by: pewe on 5 Feb 2016, 03:05 pm
If someone has listened to the DAC9 I would appreciate your thougths. :D
Title: Re: DAC-9
Post by: mervinpearce on 10 Feb 2016, 01:43 am
I bought the DAC-9 and 2 x STA-9 for bridging and being out the country (getting my paws on them this Friday) I had them delivered to a trusted friend for his input (and getting some warmup time)  his initial feedback after a few hours are noted here.  I will do a complete review this weekend.  This is a personal message to me.  Audio Physics Speakers.

"Listened a bit last night with DAC-9 as DAC and single ST-9.
Very pleasing slightly warm sounding and yes much like the IDA-8.

So this morning around 2 am I did the following DAC-9 as DAC & Pre with 1 X STA-9.
Oh Wow this works for me big time.The Nuprime kit goes so well together and I experienced lovely deep bass with nice highs and wonderful midrange.Separation of instruments is good,lovely pin point imaging with a nice feeling of being there soundstage. Yes very much like the IDA-8 with a bit more power and control.
Will bridge amps a little later and looking forward to that but first I want to try this on my Maggies."
Title: Re: DAC-9
Post by: Juventino on 11 Feb 2016, 12:50 pm
I have had the DAC-9 for a couple of weeks now and have given it approx 65-70hrs to run in

The equipment used is Valve Audio Exclame 100 Intergrated amp, B&W 703 speakers and the DAC-9 just as a DAC.
Very warm sounding Dac with excellent imaging. Detail and instrument separation is extremely good.
Depending on what you are going to pair the Dac with the bass can be a bit heavy but I think that is more due to the high gain on the DAC

Compared the DAC-9 with the W4S Dac2 and the Wadia 121. This is where we found the high gain on the DAC-9 as we had to drop the volume to approx 80 to be on even footing with the other 2 Dacs
Found the Wadia 121 and the Dac-9 to be very similar. Dac-9 slightly more detail and a more laid back sound.
With the W4S Dac we found that the DAC-9 was better over all.

We also through in a T+A Dac but there was just no comparison, the T+A is miles ahead.

Ps I have been advised that the components used are not very neutral but I am not giving a review just how I perceived it to sound using my system.

(http://i1280.photobucket.com/albums/a496/wezhira82/DSC_0330_zpspuakpmro.jpg)
(http://i1280.photobucket.com/albums/a496/wezhira82/DSC_0328_zps6mpx1h6z.jpg)
Title: Re: DAC-9
Post by: mresseguie on 11 Feb 2016, 02:26 pm
"Very warm sounding Dac with excellent imaging. Detail and instrument separation is extremely good.
Depending on what you are going to pair the Dac with the bass can be a bit heavy but I think that is more due to the high gain on the DAC

Compared the DAC-9 with the W4S Dac2 and the Wadia 121. This is where we found the high gain on the DAC-9 as we had to drop the volume to approx 80 to be on even footing with the other 2 Dacs
Found the Wadia 121 and the Dac-9 to be very similar. Dac-9 slightly more detail and a more laid back sound.
With the W4S Dac we found that the DAC-9 was better over all.

We also through in a T+A Dac but there was just no comparison, the T+A is miles ahead
."

Juventino,

Thank you for posting your impressions. Input such as this is valuable.

"Depending on what you are going to pair the Dac with the bass can be a bit heavy but I think that is more due to the high gain on the DAC."

I do not own this DAC, but I have noticed the same sound in my IDA-8 while using the Bluetooth function. There seems to be a bass boost - perhaps to help offset the reduced power output from the amplifier in Bluetooth mode(?). Dunno. I'm just guessing. Repeatedly, I have wished the IDA-8 had more power (150 to 200w/ch) specifically for the Bluetooth mode, but minus that 'extra' bass boost. I assume it's there to compensate for BT's drain on the amplifier's output.

Title: Re: DAC-9
Post by: drumnman2 on 16 Feb 2016, 02:31 am
Have a couple of questions on Dac 9 if anyone could answer please. Can the balanced and single ended outputs be used simultaneously. As in could the single ended send a full range signal to an amp and the balanced to a pr of subs ? Also if I connect an SACD player to the 2 analog inputs will it stay in analog for normal playback or be converted to digital ? Would the balanced input be better for SACD playback or aren't these units compatible with that format ? Finally  I already have an STA 9 amp (happy) and wonder if the combination would be too warm ? Thanks.
Title: Re: DAC-9
Post by: rustydoglim on 16 Feb 2016, 09:27 am
Yes, you can use the outputs simultaneously. It is designed for people who can to connect to amp/speaker AND sub or headphone amp.
The analog inputs do not go through any digital conversion.
The DAC-9 is not overly warm, what you will get with DAC-9 + STA-9 is the warm sound characteristic of STA-9.  A DAC should not add too much sonic signature to the system so we are talking about very small differences.
Title: Re: DAC-9
Post by: paulee on 18 Feb 2016, 05:30 pm
Received the DAC-9 two days ago. My experience so far:

First, I am not an audiophile(yet..have to start somewhere)

My setup is Sonos(Tidal lossless)->DAC-9->Nuforce REF 9V3SE->KEF LS50.
Previously my setup was Sonos->Yamaha Aventage RX-A1020 AVR (preout)->NuForce REF 9V3SE->KEF LS50. (using pure direct mode with no room correction)

The first thing I notice, is actually "less" or more "controlled" bass. Also, guitar strings sound has more "edge", doesnt sound as "strong or smooth", almost like they are weaker or more tender and low-fi, but more detailed - maybe more honest.

It seems the Yamaha rounded off the highs/treble more, and gave an overall more blurry and warmer sound. For me, not being an audiophile, it was quite revealing, and it will take some time to get used to. Any thoughts on this? Is this expected? Very hard to describe sound.

Tracks played:

Pink Floyd - Wish you were here
Minor Majority - Wish you'd hold that smile
D'Angelo - How does it feel
D'Angelo - Really Love
Punch Brothers - Julep

Title: Re: DAC-9
Post by: mresseguie on 20 Feb 2016, 03:32 pm
Hello, Paulee.

Unless rustydoglim says otherwise about his DAC-9, your DAC will probably change its sound over the next couple weeks (depending on how many hours it gets). Many DACs need a good hundred (or more!) hours to burn in fully. During this burn in, you may notice changes to guitar, piano, vocals, etc. As tempting as it is to listen for changes straight out of the box, even better sound is waiting for you a hundred hours from now.  :thumb:

I wouldn't be surprised if you keep noticing big improvements in your music. The DAC-9 must be much more capable than the DAC inside the Yamaha AVR. [About three years ago, I went from a Denon 2113ci to a Cambridge Audio DACMagic Plus. There was a huge improvement!] I don't even want to think about how much better the DAC-9 is than my DACMagic Plus.  :nono: It's nearly time for me to upgrade my old DAC. I'm really looking forward to it....and I'll try really hard to allow it to burn in completely before I over-analyze it (I hope!).  :icon_lol:

Listen to all your favorite songs now. Are there any "Wow!" revelations?

I'm an old (too old, perhaps) Pink Floyd fan, so I like that choice. Minor Majority is new to me, so I listened to that song on YouTube. I like it. I'm not too sure I care for 'How does it feel', but that might be my 'censor' kicking in. I suspect D'Angelo enjoyed making that video. I've heard of the Punch Brothers, but I'm unfamiliar with their music. I'll check out Julep right after I hit 'post'. [Edit: Yes! I like Julep. Reminds me a little of Sarah Jarosz.]

Post more impressions of songs as burn in occurs! And educate me with new music, please.  :wink:

Regards,

Michael
Title: Re: DAC-9
Post by: rustydoglim on 20 Feb 2016, 07:39 pm
As comparison (versus Tidal -> SONOS as source), try playing some high-res music samples from your computer to DAC-9.
We have some tracks here:
https://www.dropbox.com/sh/eytmqlk652bg10k/AACL_STgL2yyi8AY08U2Jznqa?dl=0 (https://www.dropbox.com/sh/eytmqlk652bg10k/AACL_STgL2yyi8AY08U2Jznqa?dl=0)

You will find out how much better it gets. There are 16 tracks of very short music (track01 - track16) samples that demonstrate various audio characteristic. For example, to evaluate deep bass, try track04,05. That's better than testing with drums.
Title: Re: DAC-9
Post by: drumnman2 on 22 Feb 2016, 01:40 am
I have an STA 9 amp and I am considering a DAC 9. I have noticed that I have to turn my volume knob to 1 o'clock with the STA 9 compared to only 10 o'clock with my previous amp. Only 22 gain on the 9 and 29 on my old amp, I see the ST 10 has a gain of 28. My speakers are rated at 89 db sensitivity.  Anyhow there are no specs' for the DAC 9 and I want to know what the preamp output voltage is to drive the amp. My current preamp is 2 volts, if any less I may need to go with the ST 10 instead. Just want to be sure I am not pushing the STA 9 too hard all the time. I will say the STA 9 is a pretty big improvement in clarity and detail from my previous amp and I am enjoying it.
Title: Re: DAC-9
Post by: rustydoglim on 22 Feb 2016, 07:35 am
I have an STA 9 amp and I am considering a DAC 9. I have noticed that I have to turn my volume knob to 1 o'clock with the STA 9 compared to only 10 o'clock with my previous amp. Only 22 gain on the 9 and 29 on my old amp, I see the ST 10 has a gain of 28. My speakers are rated at 89 db sensitivity.  Anyhow there are no specs' for the DAC 9 and I want to know what the preamp output voltage is to drive the amp. My current preamp is 2 volts, if any less I may need to go with the ST 10 instead. Just want to be sure I am not pushing the STA 9 too hard all the time. I will say the STA 9 is a pretty big improvement in clarity and detail from my previous amp and I am enjoying it.

DAC-9 output for RCA is 4V, XLR 8V
STA-9 mono x 2 with DAC-9 is amazing.
Title: Re: DAC-9
Post by: mervinpearce on 22 Feb 2016, 04:49 pm
STA-9 mono x 2 with DAC-9 is amazing.
Absolutely Agree!
Title: Re: DAC-9
Post by: rustydoglim on 22 Feb 2016, 08:16 pm
Whatever we can describe is on the product page. I think we gave a lot of technical description as compared to other products out there.
DAC-9 is cheap and extremely good, what else out there can compete at this price  :thumb:
The performance of a DAC actually has a lot to do with the preamp and jitter reduction design. These are the two things we don't talk a lot about.

HPA-9 is one product that we went a bit further with some proprietary design secrets.  I just updated the product page yesterday.

Title: Re: DAC-9
Post by: paulee on 23 Feb 2016, 12:05 am
As comparison (versus Tidal -> SONOS as source), try playing some high-res music samples from your computer to DAC-9.
We have some tracks here:
https://www.dropbox.com/sh/eytmqlk652bg10k/AACL_STgL2yyi8AY08U2Jznqa?dl=0 (https://www.dropbox.com/sh/eytmqlk652bg10k/AACL_STgL2yyi8AY08U2Jznqa?dl=0)

You will find out how much better it gets. There are 16 tracks of very short music (track01 - track16) samples that demonstrate various audio characteristic. For example, to evaluate deep bass, try track04,05. That's better than testing with drums.

Thanks rustydogslim for the links, It is quite amazing the bass and control I get out of the LS50's with my setup. (DAC9 + REF 9V3SE's)

Title: Re: DAC-9
Post by: drumnman2 on 23 Feb 2016, 12:45 am
DAC-9 output for RCA is 4V, XLR 8V
STA-9 mono x 2 with DAC-9 is amazing.

This is where I figured I would end up ( 2 Sta9's & Dac9). Was reading a review from Totally Wired and he felt the ST10 was the best, makes sense at almost a grand more. He also felt biamping with 2 Sta9's was better than bridging 2. Just one person's opinion but has anyone tried this set-up ? I guess when I get my 2nd one I can find out myself  !!
Title: Re: DAC-9
Post by: rustydoglim on 23 Feb 2016, 05:36 am
I listened to STA-9 mono versus stereo and was surprised by the sound quality change for the better, not just power increase. So I was perplexed because for most of the bridging amps the mono sound quality should be slightly worst, not better.
I just got this technical info from the engineer.

1. The SNR ratio for mono STA-9 is 3dB better! Why? See #2.

2. The standard design method to bridge a stereo amp into mono is by using a series of Op Amp (OPA) to invert the input signals to one of the stereo amp thereby making the two stereo amps the opposite phase which can then be combined to increase the power. STA-9 innovative bridging circuit utilise a designed we called Single End Direct Inject Bridge Technology so that the mono mode, in additional to having much more power, sounded more lively and dynamic.  Seriously this is what I heard - more lively
(engineering is working on an illustration to describe the SEDIBT design, difficult to describe in words)
Title: Re: DAC-9
Post by: jd3 on 25 Feb 2016, 01:21 pm
I've got the DAC 9 and wonder if there's a way to adjust the brightness on the display?  Mine is barely readable unless you're directly in front of it.
Title: Re: DAC-9
Post by: drumnman2 on 25 Feb 2016, 09:30 pm
Hi. One more question on the outputs.Going single ended to sta 9. I want to run a balanced to my sub with only one xlr input, can it be either left or right or do I need some kind of y- connector. Thanks
Title: Re: DAC-9
Post by: John Casler on 25 Feb 2016, 11:44 pm
Hi. One more question on the outputs.Going single ended to sta 9. I want to run a balanced to my sub with only one xlr input, can it be either left or right or do I need some kind of y- connector. Thanks

Yes
Title: Re: DAC-9
Post by: mresseguie on 26 Feb 2016, 01:55 am
Yes

John,

His question is an 'either...or' question. "A" or "B"? [Or are you saying all options will work just fine?]

 :D
Title: Re: DAC-9
Post by: John Casler on 26 Feb 2016, 02:15 am
John,

His question is an 'either...or' question. "A" or "B"? [Or are you saying all options will work just fine?]

 :D

Sorry,  YES, you need a Y-connector to combine L&R Channels.
Title: Re: DAC-9
Post by: Armaegis on 26 Feb 2016, 04:01 pm

2. The standard design method to bridge a stereo amp into mono is by using a series of Op Amp (OPA) to invert the input signals to one of the stereo amp thereby making the two stereo amps the opposite phase which can then be combined to increase the power. STA-9 innovative bridging circuit utilise a designed we called Single End Direct Inject Bridge Technology so that the mono mode, in additional to having much more power, sounded more lively and dynamic.  Seriously this is what I heard - more lively
(engineering is working on an illustration to describe the SEDIBT design, difficult to describe in words)

I'm curious if it will use this circuit even if you use a balanced input?
Title: Re: DAC-9
Post by: drumnman2 on 27 Feb 2016, 11:42 am
I've got the DAC 9 and wonder if there's a way to adjust the brightness on the display?  Mine is barely readable unless you're directly in front of it.
  Mine seems plenty bright enough, I usually turn it off, I think the off axis viewing is poor tho. Just turn it so it faces you when seated and it should be fine.
Title: Re: DAC-9
Post by: drumnman2 on 29 Feb 2016, 01:24 pm
I have a concern about the dac9 - sta9 combo I have. I notice with my old preamp that I had to turn it up quit a bit more to reach my usual levels with the Sta9 then my old amp. The old preamp had a 2 volt output so I got the dac9 which has a 4 volt output, same results. Then I invested in some xlr cables which should be an 8 volt output, same results. First to admit that I know nothing about electronics, why I am asking. I was listening to Super Tramp Crime of the Century Mobile Fidelity Gold, which I admit seems recorded at a lower lever. To reach 90 db's I had to turn up the dac9 to 85 on a scale of 99, my speakers are 89db efficient. Am I worrying about nothing, seems out of the norm to me. I admit the combination sounds awesome, best I have had, but just worried I am overdriving something. Thanks for any advice.
Title: Re: DAC-9
Post by: rustydoglim on 29 Feb 2016, 02:19 pm
STA-9 has gain of 22 due to its design. So it is expected that you should turn up the volume of your preamp and there is nothing wrong with that. The preamp best performance should be around 0 dB region (I think that corresponding to a very high volume level).
So your ear is telling you the correct thing. If it sounded so good, believe your ear :)
Title: Re: DAC-9
Post by: Nidri17 on 23 Mar 2016, 09:03 pm

Innerfidelity said the following about the DAC-10H's volume control:

"At the heart of this volume control scheme is the Muses 72320 chip from New Japan Radio Co as also found in the $16k Pass Labs XP-30."

Does the DAC-9 use the exact same design for volume control?
Perhaps a seaparate preamp is not needed any more these days.
Title: Re: DAC-9
Post by: John Casler on 23 Mar 2016, 10:30 pm
Innerfidelity said the following about the DAC-10H's volume control:

"At the heart of this volume control scheme is the Muses 72320 chip from New Japan Radio Co as also found in the $16k Pass Labs XP-30."

Does the DAC-9 use the exact same design for volume control?
Perhaps a separate preamp is not needed any more these days.

Most NuPRIME DAC-10 owners already know, that unless they need additional inputs, an additional Preamp is not needed, and likely lower in performance/sonic virtues.
Title: Re: DAC-9
Post by: Nidri17 on 24 Mar 2016, 10:33 am
"At the heart of this volume control scheme is the Muses 72320 chip from New Japan Radio Co as also found in the $16k Pass Labs XP-30."
Does the DAC-9 use the exact same design for volume control?

I can confirm the DAC-9 also uses the Muses 72320 chip.
Just had a quick peek inside.

Most NuPRIME DAC-10 owners already know, that unless they need additional inputs, an additional Preamp is not needed, and likely lower in performance/sonic virtues.

Thanks John. I've just connected my new DAC-9 to its older ST-10 sibling.
Here's hoping they play together nicely.  :thumb:
Title: Re: DAC-9
Post by: maty on 24 Mar 2016, 11:18 am
Please, I/We want a photo (inside) !!!

-> http://www.innerfidelity.com/content/nuprime-dac-10h-digital-analog-converter-headphone-amp-page-2

(http://cdn.innerfidelity.com/images/NuPrime_DAC10H_Photo_Guts.jpg)
Title: Re: DAC-9
Post by: Nidri17 on 24 Mar 2016, 07:22 pm
Please, I/We want a photo (inside) !!!

Forgot to take a photo.  :(
It has a smallish toroidal PSU.
Lots of parts look the same as on the DAC10 board.
Unfortunately the DAC is now already installed on the rack and running in.
Title: Re: DAC-9
Post by: lousyreeds1 on 31 Mar 2016, 10:50 am
Hi all,

I'm considering the DAC-9 and have a couple of questions.

1. Does it share the DAC-10's linear power supply?
2. Are there any plans to implement MQA when it's available?

Thanks!
Title: Re: DAC-9
Post by: KLH007 on 31 Mar 2016, 01:32 pm
Nidri17, How is the DAC-9/ST-10 combo sounding, should be very good. What speakers are you driving?
Title: Re: DAC-9
Post by: rustydoglim on 31 Mar 2016, 03:27 pm
DAC-9 has a linear PSU.
MQA is a software standard and has nothing to do with our DAC.
Title: Re: DAC-9
Post by: rustydoglim on 31 Mar 2016, 04:11 pm
John corrected my misunderstanding. Looks like MQA now required some code to be licensed into DAC.
I am not sure if we will ever support this. This is just too much work and cost without payback in sight. How many of you will be willing to pay a few hundred $ more for MQA that is built into our next generation DAC and how many are willing to get rid of your existing DAC.
And how many are willing to put down the deposit? Unless the demand is in the hundreds, we will lose money for .... what purpose?
This is mainly a business decision. I have been following AIXRecords discussion of MQA as a third party validation but haven't heard anything  definitive.
Title: Re: DAC-9
Post by: Nidri17 on 31 Mar 2016, 07:40 pm
Nidri17, How is the DAC-9/ST-10 combo sounding, should be very good. What speakers are you driving?

I'm using Q Acoustics Concept 20 speakers. (But hoping to get some Sonus Fabers soon.)

The DAC-9/ST-10 is, for me at least, a very good sonic match.
As promised, the DAC-9 introduces just a little bit of warmth, certainly more so than the Mytek 192 I used to have. I think the DAC-9's preamp functionality is also an improvement on the Mytek. The sound is very 'clean', low distortion, etc. but with enough of a 'liquid', organic quality to please me. And it plays LOUD, effortlessly. I can't push the volume beyond 15. So the combo has plenty of gain. I think if you have speakers that are hard to drive, this combo would be an excellent solution. But it also works beautifully with my Q's.
Title: Re: DAC-9
Post by: lousyreeds1 on 21 Apr 2016, 01:36 pm
Hi all,

I've had the DAC-9 for a few days now and am really enjoying it.  My digital source is an Auralic Aries Mini, and the DAC-9 is a nice improvement over the Auralic's internal DAC.  It got rid of some edginess and added a lot of smoothness and warmth.  The Auralic is connected to the DAC-9 using a Black Cat Silverstar 75 coax cable. 

Here's a question: what would I gain, if anything, by switching to a good-quality USB cable?  Is there any basic difference in the quality of the inputs on the DAC-9?  If it's worth considering, does anyone have recommendations?  I'd be looking for something transparent and fast.

Thanks!
Title: Re: DAC-9
Post by: rustydoglim on 22 Apr 2016, 10:14 pm
Save all your money, be patient, and when Omnia is out (production shipment probably September), replace Auralic.
Omnia sounded better (even in its current prototype) than all the A&K models including the very expensive $3500 model.
At an estimated price of $1095 (may be $995), it is a music server, renderer, player, DAC and headphone amp.

As we have mentioned in another topic, we packed a server, renderer, streamer, player, high-end DAC, and headphone amp all onto a single device. Next month, I will talk more about why Omnia can out perform any music server or portable player due to some innovations on the motherboard.
Title: Re: DAC-9
Post by: lousyreeds1 on 23 Apr 2016, 05:01 am
Ok...  I'm still interested to know whether there is a significant difference in sound quality between the DAC-9's various digital inputs - as I'm sure others are as well.  I'd appreciate hearing anyone's thoughts.
Title: Re: DAC-9
Post by: rustydoglim on 24 Apr 2016, 07:21 pm
All else being equal, coaxial is preferred over optical.
For high-res music, you pretty much have to rely on computer which is the most cost effective.
But then when Omnia is available, you would get the best performance by using it as a source/server.

At Munich, Germany next month, for the first time,
I am going to demo Omnia as a server for multiple WR-100, but also as personal player driving Sennheiser HD-800 and people will hear what it can do.
Title: Re: DAC-9
Post by: spons on 9 May 2016, 01:30 pm
http://www.audiocircle.com/index.php?topic=134697.340
Title: Re: DAC-9
Post by: kevb on 14 May 2016, 12:54 pm
Surprised there are no real user reviews about this yet, other than general impressions.  I have read the one by Totally Wired, but they are a dealer and don't really say much other than it is not quite up to the DAC-10/10H in overall performance but might be better in the midrange.

Are there any users/dealers (sounds illegal... :lol:) out there who can share more insight into what they have heard?
Title: Re: DAC-9
Post by: rustydoglim on 15 May 2016, 08:20 am
sure there are many users of DAC-9, much more than DAC-10 based on our sales.
I think DAC is becoming more of a commodity so there isn't much to say. People just don't get too excited even if it is a good DAC.
DAC-10 has headphone amp that is quite special, or multiple gain settings.  DAC-9 is very good but you just use it and forget about it.
Whereas all the different varieties of amps get people excited because they can play with different sound.
Title: Re: DAC-9
Post by: kevb on 15 May 2016, 05:17 pm
sure there are many users of DAC-9, much more than DAC-10 based on our sales.
I think DAC is becoming more of a commodity so there isn't much to say. People just don't get too excited even if it is a good DAC.
DAC-10 has headphone amp that is quite special, or multiple gain settings.  DAC-9 is very good but you just use it and forget about it.
Whereas all the different varieties of amps get people excited because they can play with different sound.

Well, I have the STA-9 with about 8 hours on it and I really am loving it.  Problem for me is that I am not sure what to go for - get the DAC-9 right now, or wait and save up for the DAC-10.  I am using an Audio-GD NFB 10.32 with dual Wolfson 8740 DAC's right now, which is supposed to be warmer than the ESS 9018.  I like the sound, but it might be a bit too warm sounding.  Plus, the USB implementation is horrible with the Tenor TE8802.  It only works on 16/44.1 in Linux.  I will be picking up another STA-9 to run in bridged mono eventually, but I need a new DAC first.

Decisions, decisions.    :scratch:

Title: Re: DAC-9
Post by: KLH007 on 15 May 2016, 10:21 pm
kevb, Stop procrastinating and get a DAC-9. You get a transparent preamp with remote, an analog input that doesn't get an A/D conversion, and the 4490 chip DAC section walks the fine line between too incisive/overly detailed and too smooth/rolled off. If you find many of the Sabre implementations not to your liking, the DAC-9 is is just right, not too warm but not lean, vocals are natural, and I find myself listening to music without concern about equipment. The differences between DACs seems to be shrinking, especially in the same price range, The DAC-9 matches your STA-9, multi-tasks eliminating a need for a separate preamp, the remote works flawlessly changing volume and inputs, USB, toslink, and SPDIF all sound terrific, and the price is a bargain.
Title: Re: DAC-9
Post by: rustydoglim on 17 May 2016, 05:55 pm
I am sure your dealer or us will be happy to let you trade in DAC-9 to DAC-10 provided that you keep it in excellent condition.
Title: Re: DAC-9
Post by: kevb on 17 May 2016, 09:39 pm
kevb, Stop procrastinating and get a DAC-9. You get a transparent preamp with remote, an analog input that doesn't get an A/D conversion, and the 4490 chip DAC section walks the fine line between too incisive/overly detailed and too smooth/rolled off. If you find many of the Sabre implementations not to your liking, the DAC-9 is is just right, not too warm but not lean, vocals are natural, and I find myself listening to music without concern about equipment. The differences between DACs seems to be shrinking, especially in the same price range, The DAC-9 matches your STA-9, multi-tasks eliminating a need for a separate preamp, the remote works flawlessly changing volume and inputs, USB, toslink, and SPDIF all sound terrific, and the price is a bargain.

That's it....I'm showing this post to my wife AFTER I order the DAC-9. After all, It's easier to beg for forgiveness than ask for permission, correct?   :lol:
Title: Re: DAC-9
Post by: mresseguie on 18 May 2016, 02:03 am
 :thumb:

Just be sure to allocate funds for your wife. She'll be a lot more forgiving (based upon my own experience).
Title: Re: DAC-9
Post by: Armaegis on 18 May 2016, 02:56 am
But which one is a renewable resource?

(says the obviously unmarried guy)
Title: Re: DAC-9
Post by: restrav on 18 May 2016, 12:30 pm
can someone please post a few pictures of the inside of DAC-9. as in a picture of the circuitry? t
Title: Re: DAC-9
Post by: kevb on 18 May 2016, 09:01 pm
:thumb:

Just be sure to allocate funds for your wife. She'll be a lot more forgiving (based upon my own experience).

I've been at this awhile.  :thumb:  I have so much equipment here that she won't even bat an eye.  As long as I am moving some out once in awhile.     :lol:
Title: Re: DAC-9
Post by: kevb on 18 May 2016, 09:02 pm
But which one is a renewable resource?

(says the obviously unmarried guy)

Wives are expensive to keep happy, but even more expensive to make go away.   :lol:
Title: Re: DAC-9
Post by: Armaegis on 19 May 2016, 05:40 am
What if you replace them with newer models? Do maintenance costs go down?  :o
Title: Re: DAC-9
Post by: mresseguie on 19 May 2016, 06:08 am
can someone please post a few pictures of the inside of DAC-9. as in a picture of the circuitry? t

Hi, Dadbeh.

Maty or someone else posted a pic of the DAC-9's insides in another thread. It may have been in the STA-9 thread. I just saw it a couple days ago. Edit: It was not the STA-9 thread. I may be confused - not the first time!  :oops:
Title: Re: DAC-9
Post by: Juventino on 19 May 2016, 12:35 pm
Well, I have the STA-9 with about 8 hours on it and I really am loving it.  Problem for me is that I am not sure what to go for - get the DAC-9 right now, or wait and save up for the DAC-10.  I am using an Audio-GD NFB 10.32 with dual Wolfson 8740 DAC's right now, which is supposed to be warmer than the ESS 9018.  I like the sound, but it might be a bit too warm sounding.  Plus, the USB implementation is horrible with the Tenor TE8802.  It only works on 16/44.1 in Linux.  I will be picking up another STA-9 to run in bridged mono eventually, but I need a new DAC first.

Decisions, decisions.    :scratch:

I am currently running 2 x STA-9 with the Dac-9 with a pair of Sonus Faber Cremona Auditors and I am loving the sound.

I recently picked up a locally (South African) produced Vivere Dac and going to see how the ESS9018 sounds with the STA-9's. I love the small foot print of the Nuprimes so even if the Vivere sounds great might sell it on.
Title: Re: DAC-9
Post by: rustydoglim on 19 May 2016, 04:04 pm
If you want the ESS DAC more neutral sound, wait for the NuPrime Omnia server+player, target to ship in October.
Title: Re: DAC-9
Post by: kevb on 19 May 2016, 06:53 pm
What if you replace them with newer models? Do maintenance costs go down?  :o

It's like buying a brand new car with high payments, while still making the monthly payments on your old one that is long gone.  :lol:
Title: Re: DAC-9
Post by: mresseguie on 19 May 2016, 08:15 pm
I have kept my model for 25 years, and look forward to the next 25 years. This allows me to spend more on audio in the long run. :thumb:
Title: Re: DAC-9
Post by: kevb on 19 May 2016, 08:50 pm
If you want the ESS DAC more neutral sound, wait for the NuPrime Omnia server+player, target to ship in October.

Or buy both and put them in different systems.   :thumb:
Title: Re: DAC-9
Post by: kevb on 19 May 2016, 08:53 pm
I have kept my model for 25 years, and look forward to the next 25 years. This allows me to spend more on audio in the long run. :thumb:

I've had mine for 21.  I have to do "covert" purchases if only because the basement looks like a used audio shop.   :D
Title: Re: DAC-9
Post by: Tauko on 29 May 2016, 07:13 pm
Inside.
http://www.audionet.com.tw/a/thread-8267-1-1.html (http://www.audionet.com.tw/a/thread-8267-1-1.html)
Title: Re: DAC-9
Post by: John Casler on 30 May 2016, 06:05 am
I have kept my model for 25 years, and look forward to the next 25 years. This allows me to spend more on audio in the long run. :thumb:

Yes, and I can say that Michael is a LUCKY MAN.  I have met Melody, and she is more than the Model Wife, but she is a wonderful person and friend.

I could tell this the moment I met her.  She even sat in the Casler LISTENING CHAMBER and actually seemed to "like" it.

Yes, Michael, you are a LUCKY MAN  :thumb:
Title: Re: DAC-9
Post by: mresseguie on 30 May 2016, 06:17 am
Thanks, John!

I just showed Melody what you wrote (and explained what led up to this). She laughed and asked me to thank you for the compliment, but also wanted me to correct you. She said she is not a model wife; she is a TROPHY wife!  :thumb:
Title: Re: DAC-9
Post by: John Casler on 30 May 2016, 01:11 pm
Thanks, John!

I just showed Melody what you wrote (and explained what led up to this). She laughed and asked me to thank you for the compliment, but also wanted me to correct you. She said she is not a model wife; she is a TROPHY wife!  :thumb:

Please tell her that I AGREE and still wish she had an older sister.  8)

What happened to the pictures we took at my house at the listening session?
Title: Re: DAC-9
Post by: mresseguie on 30 May 2016, 06:27 pm
As this is way OT, I will delete this post after I'm sure you have seen it.

Deleted...... :thumb:
Title: Re: DAC-9
Post by: Tauko on 19 Jun 2016, 03:22 pm
I bought a dac-9 but i have 2 problem. The constant hum from the toroid and an interesting distortion/crackling noise with male voices. :(
Title: Re: DAC-9
Post by: larsg on 19 Jun 2016, 05:26 pm
Also have a DAC-9 with constant hum buth the sound is allright.
Title: Re: DAC-9
Post by: rustydoglim on 20 Jun 2016, 07:43 pm
You should contact support@nuprimeaudio.com and provide the serial number with problem description. Sounds like a defective power supply.
Title: Re: DAC-9
Post by: Tubegem on 23 Jun 2016, 09:31 pm
DAC-9 preamp is very high-end using switch resistor design so it won't affect your performance and if you want to "bypass" it because you have a preamp, then just fix its volume. I bet you can get rid of your external preamp.

Shipping December 7 from factory so take about 5 days to reach USA.
Does this mean, you can fix the volume on the analogue input and use the DAC-9 in an HT bypass mode.  I believe the DAC-10 also is capable of this.

I have split my HT and 2 channel to two different rooms/floors. However, I'm not happy to the occasional 2 channel listening in the HT room in which I'm using a pre-pro + multi channel amp. So if I want the ability to play digital music files by going from the DAC-9 or DAC-10 directly to the front channels of the amp, and than use the HT bypass mode when viewing movies, or do I need a full integrated to do this? Thank you in advance.
Title: Re: DAC-9
Post by: rustydoglim on 23 Jun 2016, 10:53 pm
Quote
So if I want the ability to play digital music files by going from the DAC-9 or DAC-10 directly to the front channels of the amp, and than use the HT bypass mode when viewing movies, or do I need a full integrated to do this? Thank you in advance.

Normally this is the setup:
HT-pre-pro main L and R pre-out goes to DAC-9 analog inputs. Use the remote volume control to memorise the volume (it will remember the switch resistor level setting). Digital music source (CDP, computer) goes into DAC-9. DAC-9 outputs go to the amp.
So when watching movies, you select the DAC-9 analog input (where the volume is already memorised) and adjust the volume from your HT pre-pro.
Title: Re: DAC-9
Post by: Nidri17 on 29 Jun 2016, 08:30 pm

DAC-9 review on Headfonics:

http://headfonics.com/2016/06/the-dac-9-by-nuprime/
Title: Re: DAC-9
Post by: agdev01 on 29 Jun 2016, 10:52 pm
DAC-9 review on Headfonics:

http://headfonics.com/2016/06/the-dac-9-by-nuprime/

Thanks for the link. Great review and I have to say his thoughts very much echo my own, especially in his comparison with the DAC-10H. 
Title: Re: DAC-9
Post by: Nidri17 on 30 Jun 2016, 03:56 pm
Thanks for the link. Great review and I have to say his thoughts very much echo my own, especially in his comparison with the DAC-10H.

I haven't heard the DAC-10H to compare, but would agree with the review that the DAC-9 is very musical.
Not quite as detailed as e.g. Mytek DSD-192, but way more pleasant to listen to.
Title: Re: DAC-9
Post by: agdev01 on 1 Jul 2016, 12:07 am
Using both the DAC10/ST10 and DAC9/2x STA-9 combos in the same system there are differences between the two but its really a matter of degrees imo rather than magnitudes. 

Speaking purely for sound reproduction if someone were to ask me which ones they should get, my response would be based on how well recorded the music they typically listen to is.  Classical and other genres where there is great production value to me the DAC-10 is the hands down winner.  The quote from the review that the DAC-10 is more detailed in the treble area but without any harshness is pretty much the best description ive seen for the DAC.  Most of the music i listen to is mid-80s to early 90s alternative, which certainly doesn't meet the threshold of well recorded and can easily come off as harsh. i never found that with the DAC-10 which is impressive where there is such detail, even if you don't necessarily want to hear all of the detail.  As you said the musicality of the DAC-9/STA-9 it great for that type of music where hi-fidelity was never the aim by the artist/producer/engineer.  Again not huge but noticeable differences.  For the albums I have that are well produced the DAC-10 really shines.   When it comes to sound reproduction i don't see either as the clear winner in all circumstances.  The DAC-10 is better all around but the DAC-9 certainly can shine in some cases.

I will say when it comes to other quality such as looks, build and the like I do think the DAC-10 is a step above.  I personally love the design and the thing just feels so solid (along with a remote that is probably considered a lethal weapon).  That isn't to knock the DAC-9 as at half the price does comes some compromises.  For their respective prices, and honestly compared to much higher price points, both are great in that regard, the DAC-10 ST-10 just offering a bit more in that area.



Title: Re: DAC-9
Post by: reillyzing on 1 Jul 2016, 01:08 am
Using both the DAC10/ST10 and DAC9/2x STA-9 combos in the same system there are differences between the two but its really a matter of degrees imo rather than magnitudes. 

Speaking purely for sound reproduction if someone were to ask me which ones they should get, my response would be based on how well recorded the music they typically listen to is.  Classical and other genres where there is great production value to me the DAC-10 is the hands down winner.  The quote from the review that the DAC-10 is more detailed in the treble area but without any harshness is pretty much the best description ive seen for the DAC.  Most of the music i listen to is mid-80s to early 90s alternative, which certainly doesn't meet the threshold of well recorded and can easily come off as harsh. i never found that with the DAC-10 which is impressive where there is such detail, even if you don't necessarily want to hear all of the detail.  As you said the musicality of the DAC-9/STA-9 it great for that type of music where hi-fidelity was never the aim by the artist/producer/engineer.  Again not huge but noticeable differences.  For the albums I have that are well produced the DAC-10 really shines.   When it comes to sound reproduction i don't see either as the clear winner in all circumstances.  The DAC-10 is better all around but the DAC-9 certainly can shine in some cases.

I will say when it comes to other quality such as looks, build and the like I do think the DAC-10 is a step above.  I personally love the design and the thing just feels so solid (along with a remote that is probably considered a lethal weapon).  That isn't to knock the DAC-9 as at half the price does comes some compromises.  For their respective prices, and honestly compared to much higher price points, both are great in that regard, the DAC-10 ST-10 just offering a bit more in that area.
Thanks for posting your thoughts and comparisons. I probably listen to a lot of the same music, and also 60s and 70s rock.
I wonder how the DAC-9 and two of the STA-9, both with TDSS mods would compare to an unmodified DAC-10 and ST-10.

Have you considered pairing the DAC-9 with ST-10 and DAC-10 with STA-9?
Title: Re: DAC-9
Post by: JackD on 1 Jul 2016, 02:08 am
I would think in your situation I would look at the DAC-9 and the ST-10. The DAC would be more friendly to your music choice paired with the superior amp. 
Title: Re: DAC-9
Post by: reillyzing on 1 Jul 2016, 02:26 am
I would think in your situation I would look at the DAC-9 and the ST-10. The DAC would be more friendly to your music choice paired with the superior amp.
Thanks..Any thoughts on the MCH-K38 amp with its tubey sound, paired with a DAC-10?
Title: Re: DAC-9
Post by: JackD on 1 Jul 2016, 03:07 am
Based on my experience with the M3 Turbo S's, you don't really need the "tubey" voicing of the STA-9 or the the MCH.  I love the sound of the Spatials with the 10 series combo with mine, but from another thread if you are trying to account for the less than stellar recording efforts of 60-70's rock I would try the DAC-9 and the ST-10. I tried my Spatials with two different tube amps and it wasn't for me.  I have tried them with six different amps and the best amp for me so far is the ST-10. So I would buy an ST-10 and then if you want the benefit of the 30 day return policy and you can't get one of the other dealers to do it then try the DAC-9 from Audio Advisor and if it doesn't work out swap it for a DAC-10.
Title: Re: DAC-9
Post by: reillyzing on 1 Jul 2016, 03:15 am
Based on my experience with the M3 Turbo S's, you don't really need the "tubey" voicing of the STA-9 or the the MCH.  I love the sound of the Spatials with the 10 series combo with mine, but from another thread if you are trying to account for the less than stellar recording efforts of 60-70's rock I would try the DAC-9 and the ST-10. I tried my Spatials with two different tube amps and it wasn't for me.  I have tried them with six different amps and the best amp for me so far is the ST-10. So I would buy an ST-10 and then if you want the benefit of the 30 day return policy and you can't get one of the other dealers to do it then try the DAC-9 from Audio Advisor and if it doesn't work out swap it for a DAC-10.
Great, very helpful. I'm keeping a log with all the helpful suggestions.. Thanks.
Title: Re: DAC-9
Post by: JackD on 1 Jul 2016, 03:54 am
The ST-10 really is that good of an amp and I have owned a bunch of them in the past 35+ years. As to the DAC that comes down to which flavor you want to try.
Title: Re: DAC-9
Post by: John Casler on 1 Jul 2016, 04:35 am
Thanks..Any thoughts on the MCH-K38 amp with its tubey sound, paired with a DAC-10?

Jack D is correct. 

The first consideration should be the Preamp/DAC.  Whatever signal that leaves the DAC/Preamp, the amp will basically amplify with only small considerations or flavoring.

Secondly the K-38 does not have what might be considered "tubey sound".  It might be more between the STA-9 and the ST-10, but very small differences.

Not quite as aggressive and forward, as the ST-10, and not quite as warm as the STA-9.

But again, it is your DAC/Preamp that will determine the PRIMARY sonic, and the amp will offer secondary personality, based on the signal fed to it.
Title: Re: DAC-9
Post by: reillyzing on 1 Jul 2016, 04:39 am
Jack D is correct. 

The first consideration should be the Preamp/DAC.  Whatever signal that leaves the DAC/Preamp, the amp will basically amplify with only small considerations or flavoring.

Secondly the K-38 does not have what might be considered "tubey sound".  It might be more between the STA-9 and the ST-10, but very small differences.

Not quite as aggressive and forward, as the ST-10, and not quite as warm as the STA-9.

But again, it is your DAC/Preamp that will determine the PRIMARY sonic, and the amp will offer secondary personality, based on the signal fed to it.
Another very helpful reply. Thanks.
Title: Re: DAC-9
Post by: Nidri17 on 1 Jul 2016, 04:51 pm
I would think in your situation I would look at the DAC-9 and the ST-10. The DAC would be more friendly to your music choice paired with the superior amp.

Agreed this is an excellent synergistic combination. Works really well with my Spendor S8e speakers.
Pretty much neutral, with just enough of a hint of natural warmth to suit my tastes.
Title: Re: DAC-9
Post by: agdev01 on 1 Jul 2016, 07:04 pm
Thanks for posting your thoughts and comparisons. I probably listen to a lot of the same music, and also 60s and 70s rock.
I wonder how the DAC-9 and two of the STA-9, both with TDSS mods would compare to an unmodified DAC-10 and ST-10.

Have you considered pairing the DAC-9 with ST-10 and DAC-10 with STA-9?

I played around with the DAC-9 and ST-10 for a little bit but not enough to give an accurate assessment of them both together.   Jack and John are spot on in regards to choosing the DAC first imo.  For Amp my biggest concern would be how much power you needed for your speakers/room.

Title: Re: DAC-9
Post by: reillyzing on 2 Jul 2016, 11:21 pm
At least a few of you have been very helpful, but here's yet another comparison I'm looking for opinions on.
Ok, so for '60s through '90s rock, and prospectively with Spatial M3 Turbo S speakers, please post thoughts on the DAC-9 versus the DAC in the Vinnie Rossi LIO... If you have time to throw in any thoughts about the Gustard X-20, that would also be great. I know the Gustard is very well regarded, even against some much more expensive and popular DACs, but am unclear on where it stands in its rendering of '60s-'90s rock.
Title: Re: DAC-9
Post by: JackD on 2 Jul 2016, 11:39 pm
Not sure you are going to find anyone who has had both in their system as they are aimed at different audiences.  Also a considerable cost difference especially with the size of the amp module.  Also will the amp in the LIO be enough for the size of your room?  I have found that the sensitivity rating can be misleading especially in a larger room if you want large scale dynamics.  The M3's are sensitive but they are not Altec or JBL horn sensitive and that supplied rating does not include the bass octaves.  By all accounts Vinnie has always built great products and I don't expect the LIO is any different than the Red Wine ones. 
Title: Re: DAC-9
Post by: Nidri17 on 17 Jul 2016, 06:09 am
There's one thing I've always wondered about regarding the DAC-9.

The AKM AK4490 DAC chip at the heart of this DAC allows for certain adjustments:

"Five digital filters are integrated into the AK4490: a short delay, sharp roll-off filter and a short delay, slow roll-off filter for minimum delay, a sharp roll-off filter and a slow roll-off filter for no phase shifting, and newly integrated super slow roll-off filter with emphasized characteristics provide a wide range of choice in digital filters." - From the AKM website.

Is there any reason, technical or otherwise, why this functionality was not included in the DAC-9?
& Could such functionality be added through a firmware update?

Failing that, it would still be interesting to know which filter setting is used in the DAC-9 implementation.
Title: Re: DAC-9
Post by: Tubegem on 27 Jul 2016, 01:36 am
Normally this is the setup:
HT-pre-pro main L and R pre-out goes to DAC-9 analog inputs. Use the remote volume control to memorise the volume (it will remember the switch resistor level setting). Digital music source (CDP, computer) goes into DAC-9. DAC-9 outputs go to the amp.
So when watching movies, you select the DAC-9 analog input (where the volume is already memorised) and adjust the volume from your HT pre-pro.
Took delivery of a silver DAC-9 a couple of weeks ago and using exactly as above.  The HT bypass works like a charm.  It was also very easy to compare the DAC-9 to my OPPO 105D and Bitbox dacs, by simply using separate digital inputs and adjusting the volume for each, it was very quick to select on coax/glass optical on the same song. 
I'm very pleased with the sound as a DAC. A lot of people describe it as being on the warm side.  I find it to be very musical, delivering all the detail in the recording without throwing any overemphasized high notes in your face (mike feedback, microphone lisp etc).  To me the sound is organic and very enjoyable.  From horns to vocals and bass, all sounds rich and relaxing. I have not listened to the DAC-10. 
It continues to improve slightly even going unto it's third week of playing 10+ hours per day.  Also it's totally quiet.
Title: Re: DAC-9
Post by: pewe on 9 Aug 2016, 01:29 pm
I've looked "everywhere" but haven't found any pictures from the inside of the DAC-9. Someone who can help?
Title: Re: DAC-9
Post by: Tauko on 13 Aug 2016, 04:25 pm
I've looked "everywhere" but haven't found any pictures from the inside of the DAC-9. Someone who can help?

http://www.audionet.com.tw/data/attachment/forum/201602/25/145440ouqvb2fyqmub8evy.jpg (http://www.audionet.com.tw/data/attachment/forum/201602/25/145440ouqvb2fyqmub8evy.jpg)
Title: Re: DAC-9
Post by: rustydoglim on 14 Aug 2016, 07:26 pm
I am curious, what can you get by looking at an inside photo?
It is just circuit boards.
Title: Re: DAC-9
Post by: RDavidson on 14 Aug 2016, 07:35 pm
People like to see things, like a nice beefy power supply. It's reassuring.....sort of like peeking under the hood of a car before buying.
Title: Re: DAC-9
Post by: rajacat on 14 Aug 2016, 07:38 pm
+1
Title: Re: DAC-9
Post by: rustydoglim on 14 Aug 2016, 08:25 pm
But that could be misleading. We have been designing amps and power supplies for a long time. 
Technologies have been advancing on amplifier for the past decade.  People are starting to realise that a small and compact amp (and low price) such as STA-9 can out performs a 50 lb Class A amp from years ago.
Most people's idea of a beefy power supply is simply a big linear transformer. We use that in DAC-9 because 1) it is cheap and 2) it has low noise.
But "beefy" linear power supply is not a good choice for high power amp. A DAC does not require much power so linear power supply is a good choice.  But a small and compact switching power supply provides very fast response and higher power density than linear power supply.  We can design switch power supply that is low noise.  It wasn't used in DAC-9 because low noise switching power supply is more expensive

For example, here's a prototype of a ridiculously small stereo amp (about 3" x 2" per channel) that can be bridged into 150W power at 8 ohm.
(http://www.audiocircle.com/image.php?id=148506)
Title: Re: DAC-9
Post by: RDavidson on 14 Aug 2016, 08:44 pm
Understood. I was just using "beefy power supply" as an example. This is obviously more important to see in "traditional" amplifier designs. I suppose, with a DAC, people might want to see the layout (is it clean?), maybe the caps, opamps, chip(s). I'm not entirely sure. Most of us in this hobby are men. We just like to see the working innards of stuff, even if it isn't really necessary to see it......like peeking under the hood of a car before buying. :thumb:
Title: Re: DAC-9
Post by: rajacat on 14 Aug 2016, 08:45 pm
Why not placate a potential customer ? No need to patronize :scratch:.  Its simple to just post a pic of the interior, for Pete's sake! If you were going to buy a car, wouldn't you like to pop the hood?
Title: Re: DAC-9
Post by: rustydoglim on 16 Aug 2016, 08:42 am
Just trying to understand what customers want and correct any incorrect perception.
We have no problem showing the internal photo.
Title: Re: DAC-9
Post by: Armaegis on 16 Aug 2016, 10:39 pm
People like internal pics because it satisfies a curiosity about things they don't quite understand. On the downside, it fuels the obsessiveness over things they don't fully understand and people start chasing boutique parts by name only without regards to design.
Title: Re: DAC-9
Post by: pewe on 23 Aug 2016, 04:13 pm
Is it possible to connect my android Samsung Galaxy S4 phone to the usb input on the DAC9?
Title: Re: DAC-9
Post by: rustydoglim on 26 Aug 2016, 09:06 pm
Yes, you connect using an OTG USB cable. I think to get the best performance you need an Android player that can decode hi-res music.
Title: Re: DAC-9
Post by: triumph on 29 Aug 2016, 03:58 pm
As comparison (versus Tidal -> SONOS as source), try playing some high-res music samples from your computer to DAC-9.
We have some tracks here:
https://www.dropbox.com/sh/eytmqlk652bg10k/AACL_STgL2yyi8AY08U2Jznqa?dl=0 (https://www.dropbox.com/sh/eytmqlk652bg10k/AACL_STgL2yyi8AY08U2Jznqa?dl=0)

You will find out how much better it gets. There are 16 tracks of very short music (track01 - track16) samples that demonstrate various audio characteristic. For example, to evaluate deep bass, try track04,05. That's better than testing with drums.

A big thank you for offering these files.

Unfortunately, I've been trying to download some of them, in different format, wav, flac, m4a, but none of them can play in any of the audio apps I have, from iTunes, to Audirvana or JRiver.

I didn't try the DSD files yet, as they are much bigger.

Any reason why them wouldn't work?
Title: Re: DAC-9
Post by: rustydoglim on 30 Aug 2016, 07:49 pm
Yes, those files were corrupted. I have just updated them. Please try again. Those short demo tracks by Jim Merod are awesome.
Title: Re: DAC-9
Post by: triumph on 31 Aug 2016, 01:43 am
Thank you very much!
I'll try downloading today.

Here's a more related question for this thread:

With the DAC-9, and using JRiver as music player and for active crossovers, can I select all 4 outputs individually?  Would JRiver see all 4 outputs as being distinct, or would the balanced/unbalanced outputs be linked?

My goal is to send 2 outputs to my L/R full range drivers, and the other 2 outputs to my L/R subwoofers.

Thank again!
Title: Re: DAC-9
Post by: Armaegis on 31 Aug 2016, 01:50 am
If I'm reading you correctly, no the DAC-9 will not work that way. You will need a 4-channel sound card, and you will need to sync two zones (each going to a separate 2 channels) for simultaneous playback in JRiver, while each zone handles it's own DSP/EQ for the pseudo crossover effect that you're going for. On the plus side you could theoretically get a good result and even do time alignment with JRiver's DSP functions. On the downside, the zone syncing must be spot-on (tricky at times) or it's all going to sound like mush.

I've tried doing this before (back with MC18) and could never quite get the sync to be correct each time.
Title: Re: DAC-9
Post by: triumph on 31 Aug 2016, 03:12 am
I have an 8-channel pro sound card at the moment.  I was hoping to improve in the DAC department.

You don't need 2 zones.  Just be selecting something like 5.1, the channels are labelled Left-Right-Center-SurroundLeft-SurroundRight-Subwoofer.
Using JRiver, I put a HighPass on the L/R channels, as my mains.  I copy the L/R to SL and SR and lowPass that to create my woofer channels.

Then connecting amps to 1-2 for Mains and 5-6 for Woofers. (Channel 3 it typically used for Center, while 4 is the sub).

I use the zone function to switch between music listening, and true 5.1 movie watching with different assignments on the output channels... or to test Convolution filters.

So, my question was, can I assign a HighPass on the unbalanced channels and a LowPass on the balanced channels with JRiver and the DAC-9?  Or are they linked and JRiver sees the DAC-9 as a 2-channel soundcard?
Title: Re: DAC-9
Post by: Armaegis on 31 Aug 2016, 05:26 am
Oh I see... yeah I totally forgot about multichannel processing since I dwell almost entirely in the 2-channel world.

I'm quite positive the DAC-9 will only register as a 2-channel device.

Now if your current soundcard has multiple digital outs, then you could potentially wrangle that into two separate dacs, but your costs are climbing rapidly now.
Title: Re: DAC-9
Post by: triumph on 31 Aug 2016, 05:56 am
Yes, those files were corrupted. I have just updated them. Please try again. Those short demo tracks by Jim Merod are awesome.

Yep, the Jim Merod you've updated now work.  Thanks.
Title: Re: DAC-9
Post by: triumph on 31 Aug 2016, 05:58 am
Oh I see... yeah I totally forgot about multichannel processing since I dwell almost entirely in the 2-channel world.

I'm quite positive the DAC-9 will only register as a 2-channel device.

Now if your current soundcard has multiple digital outs, then you could potentially wrangle that into two separate dacs, but your costs are climbing rapidly now.

Thanks... yep, I'm sure I don't want to start daisychaining a bunch of hardware boxes....
Title: Re: DAC-9
Post by: Sandals123 on 27 Sep 2016, 03:43 pm
Hi everyone, sorry if I missed this point, does the DAC9 have the ability to connect and drive headphones?
Title: Re: DAC-9
Post by: srb on 27 Sep 2016, 04:11 pm
Hi everyone, sorry if I missed this point, does the DAC9 have the ability to connect and drive headphones?

If you look at the NuPrime DAC-9 page, http://www.nuprimeaudio.com/index.php/products/dacs-and-headphone-amps/home-audio-dacs/dac-9.html, you will see that there is no headphone jack and

"... the DAC-9 offers no integrated headphone amp." ...

"The DAC-10 features two levels of gain setting for both preamp and headphone amp outputs, with its XLR outputs producing 16 watts of power respectively, thus allowing the DAC-10 to partner with and drive any power amp or headphone."
Title: Re: DAC-9
Post by: Sandals123 on 27 Sep 2016, 04:16 pm
Thanks for the reply. I have ordered my 9 amp and DAC, I guess I will have to decide how to best deal with using headphones separately.
Title: Re: DAC-9
Post by: John Casler on 27 Sep 2016, 04:21 pm
Thanks for the reply. I have ordered my 9 amp and DAC, I guess I will have to decide how to best deal with using headphones separately.

Of course a great Headphone Option is the HPA-9 (http://www.nuprimeaudio.com/index.php/products/dacs-and-headphone-amps/headphone-amp/hpa-9.html)

(http://www.nuprimeaudio.com/media/rokgallery/4/43f9220b-2f93-4c9d-a34a-8a746ab2a2ff/HPA-9-lifestyle3.jpg)


Title: Re: DAC-9
Post by: Sandals123 on 27 Sep 2016, 04:43 pm
Thanks John, that may be the option! The DAC 9 is just so loaded with features, I optimistically thought it may also have headphone capabilities. Can you please send me a PM on pricing and availability on the HPA?
Title: Re: DAC-9
Post by: rustydoglim on 27 Sep 2016, 04:58 pm
We have been struggling with the decision of whether to add a "ok" headphone amp to a world class DAC-9. As you can see from the description of HPA-9, it will take that much design work to make a good headphone amp that can drive sensitive IEM to power hungry over-ear headphones. That's why we didn't want to have a headphone output feature in DAC-9 that couldn't live up to its performance.

But for entry level DAC such as uDSD, it will be fine.
Title: Re: DAC-9
Post by: Sandals123 on 27 Sep 2016, 08:53 pm
If the combination of the STA 9 and DAC 9 are as good as it appears, the inconvenience of no headphone is no big deal! I am so excited to get my gear! Thanks for all of your help.
Title: Re: DAC-9
Post by: DeonC on 21 Oct 2016, 05:26 pm
We have been struggling with the decision of whether to add a "ok" headphone amp to a world class DAC-9. As you can see from the description of HPA-9, it will take that much design work to make a good headphone amp that can drive sensitive IEM to power hungry over-ear headphones. That's why we didn't want to have a headphone output feature in DAC-9 that couldn't live up to its performance.

But for entry level DAC such as uDSD, it will be fine.

I am also a satisfied DAC-9 owner, using a NuForce MSR-1 server as source. My only problem with the DAC-9 + HPA-9 combination (and therefore the reason for not heading that direction) is that the DAC-9 does not have a processor/tape loop where I can plug the HPA-9 in. Therefore, when using the HPA-9, I cannot listen to the digital inputs on my DAC-9. If the DAC-9 had a loop (instead of just an analogue input), I have no doubt I would have added a HPA-9 to my system. Could this be made a future upgrade to the DAC-9?

Thanks,
Deon
Title: Re: DAC-9
Post by: cliffy on 21 Oct 2016, 07:44 pm
I am also a satisfied DAC-9 owner, using a NuForce MSR-1 server as source. My only problem with the DAC-9 + HPA-9 combination (and therefore the reason for not heading that direction) is that the DAC-9 does not have a processor/tape loop where I can plug the HPA-9 in. Therefore, when using the HPA-9, I cannot listen to the digital inputs on my DAC-9. If the DAC-9 had a loop (instead of just an analogue input), I have no doubt I would have added a HPA-9 to my system. Could this be made a future upgrade to the DAC-9?

Thanks,
Deon

More info please!  I don't see this product on the website.

Never mind.  Google is my friend :-)
Title: Re: DAC-9
Post by: GreatDane on 5 Nov 2016, 01:05 pm
After many hours of research, reading specs, and comparing DACs, I finally decided to order the DAC-9.

The specs on this thing are spectacular! THD+N: 0.0015%....

I'll be using it in pure DAC mode to pair with my McIntosh MA6600. I've been searching for a warm sounding, non-fatiguing DAC - don't like lean and analytical.
Title: Re: DAC-9
Post by: pewe on 10 Nov 2016, 10:03 am
Congrats on you new DAC9. If you have time I would appreciate some listening impressions :)
Title: Re: DAC-9
Post by: GreatDane on 15 Nov 2016, 10:43 pm
Just got my DAC-9 today and listening to the the first few songs. So far sounds great! Sounds clear and open.

Quick question. Is there a way to bypass the preamp? I couldn't find anything in the manual. Or do you just max out the volume on the preamp to use as a straight DAC?

Thanks
Title: Re: DAC-9
Post by: JackD on 16 Nov 2016, 12:00 am
Set it at 94.  That is the 0 db setting.
Title: Re: DAC-9
Post by: GreatDane on 16 Nov 2016, 12:23 am
Thanks for the reply. That helps.

One other question. Is there a way to switch the display to display the current bitrate instead of the of the input/volume? I read somewhere it was supposed to switch over to bitrate over a period of time, but mine stays constantly on input/volume.

Title: Re: DAC-9
Post by: ertner on 20 Nov 2016, 02:57 pm
Anybody knows if its possible to select which outputs are active?
I plan to feed my active Focal Solos from the XLR's, and connect a headphone amp to the RCA outputs. Of course I can switch off the headphone amp when listening to the speakers and vice versa, but it would be far more elegant just to select the output I want to use.
Haven't got a DAC-9 yet, so I'm not able to test it myself....
Title: Re: DAC-9
Post by: GreatDane on 21 Nov 2016, 11:20 pm
I could be wrong, but I think both outputs are active all the time.
Title: Re: DAC-9
Post by: John Casler on 21 Nov 2016, 11:55 pm
Anybody knows if its possible to select which outputs are active?
I plan to feed my active Focal Solos from the XLR's, and connect a headphone amp to the RCA outputs. Of course I can switch off the headphone amp when listening to the speakers and vice versa, but it would be far more elegant just to select the output I want to use.
Haven't got a DAC-9 yet, so I'm not able to test it myself....

No, on the DAC-9 and DAC-10, the outputs are not selectable, and yes, they are both active.

Title: Re: DAC-9
Post by: John Casler on 22 Nov 2016, 12:03 am
Thanks for the reply. That helps.

One other question. Is there a way to switch the display to display the current bitrate instead of the of the input/volume? I read somewhere it was supposed to switch over to bitrate over a period of time, but mine stays constantly on input/volume.

I believe the IDA-8, DAC-9, and DAC-10 all display the volume setting only when "adjusting" the volume, on "digital sources", and then diplay the "bitrate" after a few seconds.

However if you are using the "analog" inputs, the volume setting would be the on the display, and no bitrate.

Title: Re: DAC-9
Post by: GreatDane on 22 Nov 2016, 12:25 am
Hmmmmm. Mine doesn't do that. It stays on volume setting. I'm using the USB input.
Title: Re: DAC-9
Post by: John Casler on 22 Nov 2016, 01:33 am
Hmmmmm. Mine doesn't do that. It stays on volume setting. I'm using the USB input.

Actually I worded that wrong.  :duh:

On the DAC-10 it is the bitrate that is displayed, and the Volume is only displayed when you are changing it.

On the IDA-8 it is the volume that is displayed and the bitrate is only displayed when you first change to the "source".

I don't have a DAC-9 here to verify, but I assume it is the same as the DAC-10.

Title: Re: DAC-9
Post by: GreatDane on 22 Nov 2016, 01:40 am
I've emailed NuPrime for clarification on the issue a few days ago, but haven't heard back yet.
Title: Re: DAC-9
Post by: dwaleke on 22 Nov 2016, 03:55 am
Dac-9 stays on input and volume level with USB input.
Title: Re: DAC-9
Post by: GreatDane on 22 Nov 2016, 03:58 am
Thanks.
Title: Re: DAC-9
Post by: ertner on 22 Nov 2016, 05:11 pm
No, on the DAC-9 and DAC-10, the outputs are not selectable, and yes, they are both active.

Thanks
Title: Re: DAC-9
Post by: maty on 8 Dec 2016, 12:01 pm
Hard gutted

[French Review] NuPrime DAC-9 : un convertisseur numérique analogique évolué compatible 24 bits à 384 kHz et DSD 11,2 MHz !

-> http://www.qobuz.com/FR-fr/info/Hi-Res-Guide/Bancs-d-essai/NuPrime-DAC-9-un-convertisseur178798

to English:

-> https://translate.google.com/translate?sl=fr&tl=en&js=y&prev=_t&hl=es&ie=UTF-8&u=http%3A%2F%2Fwww.qobuz.com%2FFR-fr%2Finfo%2FHi-Res-Guide%2FBancs-d-essai%2FNuPrime-DAC-9-un-convertisseur178798&edit-text=
Title: Re: DAC-9
Post by: maty on 8 Dec 2016, 12:05 pm
Please, can you tell us how it attenuates jitter?

These days I have greatly attenuated the jitter generated by the computer -USB jitter was already solved- and the improvement in sound is great, very great (I have an ODAC).
Title: Re: DAC-9
Post by: davidavdavid on 29 Dec 2016, 02:24 pm
Just paging through my AudioAdvisor Winter Clearance circular and it would appear that they have a deal on 2 demo units of Nuprime's DAC 9. They are available for $599.91 each.

It has been three years, not such a long time ago that I purchased my exasSound e22 DAC, with which I am enamored. It was one of the first readily available to handle DSD 256 and its voltage switched automatically so I was sold on it immediately. It sounds great too

Anyhow, pretty much the same features which I purchased for $2500 can be available to you for $600, if you take advantage of the above offer. Even at the regular price of $749, thats about one-third the price I paid for my E22, a bit less than that even.

The DAC 9 at any price is a bargain compared to what's out there.
Title: Re: DAC-9
Post by: reillyzing on 2 Jan 2017, 02:56 pm
rustydoglim, can you give your thoughts on the DAC-9 versus DAC-10 for rock music only?
Title: Re: DAC-9
Post by: rustydoglim on 2 Jan 2017, 10:08 pm
DAC-9 will be good enough. Not that DAC-10 is not good for rock music.
Title: Re: DAC-9
Post by: JackD on 2 Jan 2017, 11:00 pm
The DAC-9 could be more forgiving for less than optimal recordings, but I do use my DAC-10 with any type of music and it has been fine for almost a year and a half.
Title: Re: DAC-9
Post by: Xyrium on 5 Jan 2017, 03:02 am
Hey guys, I'm building a small desktop rig and started by swapping my Parasound A23 for a STA-9. I just received it this week, so I'm withholding comparisons.

However, I am considering a DAC9 as well, but need to know if the XLR outputs are compromised when both XLR and SE outputs are used simultaneously. Meaning, if both are connected, do the XLRs revert to SE operation, or are each set of outputs buffered, so that they can be run simultaneously without compromise?

Thanks,
Paul
Title: Re: DAC-9
Post by: John Casler on 5 Jan 2017, 03:08 am
Hey guys, I'm building a small desktop rig and started by swapping my Parasound A23 for a STA-9. I just received it this week, so I'm withholding comparisons.

However, I am considering a DAC9 as well, but need to know if the XLR outputs are compromised when both XLR and SE outputs are used simultaneously. Meaning, if both are connected, do the XLRs revert to SE operation, or are each set of outputs buffered, so that they can be run simultaneously without compromise?

Thanks,
Paul

The outputs used simultaneously will show no issues, or performance reduction.  It is quite common to run your amps with the XLR outs, and the sub(s) with the RCA outs.



Title: Re: DAC-9
Post by: Xyrium on 5 Jan 2017, 03:18 am
Thanks John. I figured I'd ask since I'm lurking about today. You should be hearing from me within the hour!
Title: Re: DAC-9
Post by: RafaPolit on 5 Jan 2017, 03:37 am
...I'm building a small desktop rig and started by swapping my Parasound A23 for a STA-9. I just received it this week, so I'm withholding comparisons...
Hi Xyrium,

Really interested in your conclusions regarding this change! What made you go for the STA-9 over the A23?

I am always reading about equipment and looking for honest unbiased views on different equipments, which is really hard to achieve with reviews that have interests in the results of the reviews.  The A23 seems like a nice and balanced Amp, at a comparable price to the STA-9.

I dream of sometime soon changing my integrated DAC-Amp into two dedicated units, and this are interesting choices. So I am looking forward to picking your brain as to why you decided to go for the 9 over theA23 and your results!

Best regards,
Rafa.
Title: Re: DAC-9
Post by: Xyrium on 2 Feb 2017, 03:10 pm
Hi Rafa,

Sorry for the late reply!

The main impetus was to move everything to my desktop as I was forced to downsize in order to accommodate my 2yo son and his ever-growing needs. However, the STA9/DAC9 combo is definitely smoother. I'm sure everyone is calling that combo smooth. The A23 was slightly more analytical, and wouldn't hide harshness if the recording contained frequencies that were harsh to my ears. I'd consider the A23 rather flat in response, so when you feed it excellent material, it was astoundingly good. The A23 is all most ppl will need within a medium sized room IMHO. It's an excellent amplifier.

Regarding the DAC9/STA9 combo, it's drier, softer, and the soundstage is slightly narrow. However, I can listen to any genre and it doesn't offend, while at the same time, the timbre of instruments (big deal to me) is still quite good. I'm not sure which filter they chose when they implemented the 4490 in the DAC9, but it seems to be solid all around.

My main listening habits lean towards stuff like Dave Matthews, Sting, John Mayer, Alterbridge, SRV, Al DiMeola, Dream Theater, Joe Bonamassa, Dave Weckl, Tim McGraw, Second Nature, and some random Classical. So, anything from Metal to Country and a lot in between. My speakers are low end Dynaudio m10s, spaced about 4.5 feet wide and listening within somewhat of a triangle (I listen a little further back than they are wide). Room treatment is OC 703 (2" and 4") and Roxul RB 80 2". The room is about 8' deep, 8' high and 15' wide.

This is my lowest cost system by far, though it's still gratifying. I'm working on a custom 8" sub build with a MiniDSP ICEpower amp to reinforce 40-50Hz, but that's the extent of it.

I hope this helps!





Hi Xyrium,

Really interested in your conclusions regarding this change! What made you go for the STA-9 over the A23?

I am always reading about equipment and looking for honest unbiased views on different equipments, which is really hard to achieve with reviews that have interests in the results of the reviews.  The A23 seems like a nice and balanced Amp, at a comparable price to the STA-9.

I dream of sometime soon changing my integrated DAC-Amp into two dedicated units, and this are interesting choices. So I am looking forward to picking your brain as to why you decided to go for the 9 over theA23 and your results!

Best regards,
Rafa.
Title: Re: DAC-9
Post by: GreatDane on 11 Mar 2017, 11:39 pm
My thoughts on the DAC-9:

http://audioreview.ca/default.aspx?pagename=review&reviewID=7666 (http://audioreview.ca/default.aspx?pagename=review&reviewID=7666)
Title: Re: DAC-9
Post by: rustydoglim on 14 Mar 2017, 06:16 pm
Thanks, we need as much word of mouth as we can get. 
Title: Re: DAC-9
Post by: mvm on 15 Jun 2017, 08:16 pm
Thanks, we need as much word of mouth as we can get.

Hello, hello.

Quick question. Are there any plans for brining MQA on board of DAC-9?

Cheers,
M,
Title: Re: DAC-9
Post by: rustydoglim on 6 Jul 2017, 07:53 pm
MQA music can be decoded by DAC-9. The issue is whether the "decompression" should be done on your phone's app or in hardware.
I don't think it will make a difference. But implementing in hardware will ended up raising the price by a few hundred.  Perhaps even more if the demand is low.
Title: Re: DAC-9
Post by: mvm on 14 Jul 2017, 08:42 pm
MQA music can be decoded by DAC-9. The issue is whether the "decompression" should be done on your phone's app or in hardware.
I don't think it will make a difference. But implementing in hardware will ended up raising the price by a few hundred.  Perhaps even more if the demand is low.

Thanks for that.
In either case, I am loving my DAC-9.
Brilliant work.
Cheers,
M,
Title: Re: DAC-9
Post by: Eduardo AAVM on 18 Jul 2017, 04:55 am
The DAC-9 could be more forgiving for less than optimal recordings, but I do use my DAC-10 with any type of music and it has been fine for almost a year and a half.

Exactly DAC-9 is very gentle with not so good recordings but when one wnats the purest audio possible, as it is the DAC-10, it is my reference.
Title: Re: DAC-9
Post by: Eduardo AAVM on 18 Jul 2017, 05:25 am
My loved pair !


(http://www.audiocircle.com/image.php?id=165698)
Title: Re: DAC-9
Post by: GreatDane on 18 Jul 2017, 12:52 pm
I'm still impressed with my DAC-9.

That being said, I'd love to hear the DAC-10.
Title: Re: DAC-9
Post by: Roman Kozak on 29 Nov 2017, 08:04 am
Здравствуйте ! Подскажите, имею dac-9
могу ли я в домашних условиях уменьшить напряжение на выходе rca с 4v до 2v?
Спасибо.
Title: Re: DAC-9
Post by: Roman Kozak on 29 Nov 2017, 12:49 pm
Hi Justin
One more question with the DAC-9 is there a way to by pass the PREAMP section of the Dac-9 to use it as DAC only?
Not use the volume control of the DAC-9?
Title: Re: DAC-9
Post by: richidoo on 29 Nov 2017, 01:06 pm
Здравствуйте ! Подскажите, имею dac-9
могу ли я в домашних условиях уменьшить напряжение на выходе rca с 4v до 2v?
Спасибо.

English, please? :)
Title: Re: DAC-9
Post by: Wind Chaser on 29 Nov 2017, 04:12 pm
English, please? :)

Hello ! Tell me, I have dac-9
Can I at home reduce the output voltage rca from 4v to 2v?
Thank you.  :thumb:
Title: Re: DAC-9
Post by: Wind Chaser on 29 Nov 2017, 04:16 pm
I'm still impressed with my DAC-9.

That being said, I'd love to hear the DAC-10.

And I’m still impressed with the DAC-10, but I’d love to hear a DAC-9.  :lol:
Title: Re: DAC-9
Post by: Roman Kozak on 1 Dec 2017, 12:53 pm

(http://www.audiocircle.com/image.php?id=172120)
My loved pair !
NuPrime Dac-9+Densen B-100
Title: Re: DAC-9
Post by: pewe on 4 May 2018, 05:39 pm
Is it possible to use xlr and rca outputs from the dac9 at the same time? I want to use the xlr's from dac9 to a pair of active speakers  and the rca outputs to an active subwoofer.
Title: Re: DAC-9
Post by: John Casler on 4 May 2018, 06:07 pm
Is it possible to use xlr and rca outputs from the dac9 at the same time? I want to use the xlr's from dac9 to a pair of active speakers  and the rca outputs to an active subwoofer.

Yes, both are active at the same time.
Title: Re: DAC-9
Post by: tudorbuda on 8 May 2018, 09:18 pm
Hello all,

i'm new here, I made the account because i recently bought a Nuprime DAC 9 and 2x STA 9.
I'm having a couple of issues with the DAC (i had 3, but the USB buzz dissapeared after I modified the power cord, leaving out the ground wire. Powered usb hub didn't solve it.)

1 - each time i plug in the DAC a very loud BANG comes out of the speakers (probably full power). If i turn it on and off it stays quiet, but if i unplug and then plug it again, it`s heart attack time. Luckily my main speakers are being refinished and i`m using some small Quad 12L bookshelfs. it stays on 99% of the time, but when i need to do some cable management, i always forget to disconnect the speakers or XLRs before i plug in the DAC.

2 - I'd like to use the DAC 9 for my headphones setup too, but when i connect the RCAs from dac out to my Lehmann Linear RCA in, I have to raise the DAC volume and thus, sending power to the speakers aswell.
Right now it`s like this: PC>usb>dac9>optical out>Styleaudio Carat Sapphire DAC>RCA to Lehmann Linear> HD800... and it`s rather stupid. I'd like to get rid of some of the small boxes, not add other ones :)
(https://www.audiocircle.com/image.php?id=179885)
Title: Re: DAC-9
Post by: rustydoglim on 11 May 2018, 04:02 am
Regarding the pop, you should not be plugging and unplugging the DAC without going through the power switch. When power switch is used to turn on/off the device, there is a relay that will properly power on and off internal components (to avoid random pop noise).

For headphone use, normally you would be using another headphone amp with volume control, such as HPA-9.
Title: Re: DAC-9
Post by: tudorbuda on 11 May 2018, 05:21 pm
Thanks for the answer.

about the headphone issue, i won't add another unit just for that. I'll probably switch to DAC 10H, to get rid of the other two small boxes
2 questions, tho:

1 - do you think it will be a better headphone amp than the Lehmann Linear? I'll stick with HD800 and Audeze LCD2
2 - won't i have the same issue? If i want to switch to headphones, can I separately control the volumes on the headphones and amp output?
Title: Re: DAC-9
Post by: rustydoglim on 13 May 2018, 08:20 am
about the headphone issue, i won't add another unit just for that. I'll probably switch to DAC 10H, to get rid of the other two small boxes
2 questions, tho:

1 - do you think it will be a better headphone amp than the Lehmann Linear? I'll stick with HD800 and Audeze LCD2
2 - won't i have the same issue? If i want to switch to headphones, can I separately control the volumes on the headphones and amp output?

1. Read the review https://www.innerfidelity.com/content/nuprime-dac-10h-digital-analog-converter-headphone-amp#3tYhiFHSReehBLXl.97 (https://www.innerfidelity.com/content/nuprime-dac-10h-digital-analog-converter-headphone-amp#3tYhiFHSReehBLXl.97).  I will save you the effort - the headphone amp on DAC-10H is as good as a well known $3000 pure headphone amp, both reviewers were shocked to find out.
2. DAC-10H has 16 gain settings so you can find something that match your headphone and speaker, if you are too lazy to adjust the volume when you switch over from one to another :)

By the way, it is somewhere in the manual that you need to use remote control to turn off the line out of DAC-10H.  Inserting the headphone will not automatically turn off speaker. DAC-10H was designed with studio professionals in mind.

Title: Re: DAC-9
Post by: tudorbuda on 21 May 2018, 09:53 am
Thank you for your answers,

now i connected the DAC 9 to a ROTEL RB 1090 trough unbalanced RCAs. Power switch on 0, plugged everything, press the power switch, BANG! 380w POP in some poor Quad bookshelfs, to the point where it may have caused some permanent damage to the drivers. Do you think that i may have received a defective unit? Should I RMA it?

Also the ground loop noises are back when connected trough USB, even with the ground wire disabled. I'll have to test it, switching back to the STA 9s, conecting the Rotel by XLR, etc. trough optical it's all good (the toslink small lid/cover got stuck in, then fell off)

By the way, about the review, it doesn't say that it's better than a 3k dedicated amp, it says that he never heard a $300 headphone amp (the price difference between 10 and 10H) that sounded this good.: "HiFiMAN's new HE-1000 flagship has impressive highs and also sounds quite good from the DAC-10H. That probably makes for my favorite combo of all, though I recognize the price discrepancy is fairly extreme. Folks running a $3k headphone would almost certainly own a dedicated high-end headphone amp. Still, it's nice to hear what the NuPrime is capable of."


That's why i asked, because the Lehmann Linear is a 900 euro amp and while i sincerely hope that the 10H is better, i wouldn't want to be a bit dissapointed.

(https://www.audiocircle.com/image.php?id=180314)

Title: Re: DAC-9
Post by: MASH on 26 May 2018, 07:08 pm
Hi everyone :)

I have a STA 9 with DAC 9. Wondering if anyone has experience with bluetooth dongle for DAC 9 - BTR-8
https://www.ebay.com/itm/BTR-8-Bluetooth-adapter-Bluetooth-streaming-receiver-For-NuPrime-IDA-8-DAC-9-/312033718675

Thank You,
Kind Regards
Title: Re: DAC-9
Post by: pewe on 28 May 2018, 12:40 pm
Thank you for your answers,

now i connected the DAC 9 to a ROTEL RB 1090 trough unbalanced RCAs. Power switch on 0, plugged everything, press the power switch, BANG! 380w POP in some poor Quad bookshelfs, to the point where it may have caused some permanent damage to the drivers. Do you think that i may have received a defective unit? Should I RMA it?

This is my start up procedure on My Nuforce Ref 9V2:s monoblock and P8 preamp. I'm sure you can use the same technique for your DAC9. When the monoblocks and preamp have the power switch to "off" I switch the pre amp to "on". The preamp then automatically goes into stand by. Then I switch the monoblocks to "on". A very soft click is heard through the speakers. And after that I use the remote to start up the preamp by clicking "on".

Shutting down is the reverse: First "off" with the remote and then shutting down the monoblocks with the power switch on the back. You can't have your amp(s) on and then use the power switch on the back of the preamp....you will hear a loud noise.
Title: Re: DAC-9
Post by: pewe on 18 Jun 2018, 09:07 pm
I'm really close on pulling the tigger on a DAC9, replacing my Nuforce P8 preamp.  I need digital input as well as rca. My Nuforce ref 9 v2 monoblock will stay.

Wonder if this will be an upgrade? Unfortunately I can not listen before buying. Any thoughts on this?
Title: Re: DAC-9
Post by: Wind Chaser on 18 Jun 2018, 09:18 pm
Hi everyone :)

I have a STA 9 with DAC 9. Wondering if anyone has experience with bluetooth dongle for DAC 9 - BTR-8
https://www.ebay.com/itm/BTR-8-Bluetooth-adapter-Bluetooth-streaming-receiver-For-NuPrime-IDA-8-DAC-9-/312033718675

I know it doesn't exactly answer your specific question, but I tried the BTR-8 with the IDA-8 and while it does function as it should, the SQ isn't going to take your breath away. Still it is useful for what it is...
Title: Re: DAC-9
Post by: Wind Chaser on 18 Jun 2018, 09:21 pm
I'm really close on pulling the tigger on a DAC9, replacing my Nuforce P8 preamp.  I need digital input as well as rca.

Wonder if this will be an upgrade? Unfortunately I can not listen before buying. Any thoughts on this?

At the very least I would try it, most places will allow you a trial period.

Title: Re: DAC-9
Post by: rustydoglim on 22 Jun 2018, 04:27 pm
NuForce P8 to DAC-9, go ahead it is a no brainer upgrade. 
Title: Re: DAC-9
Post by: simon740 on 21 Jul 2018, 09:46 pm
Hello,

Im a new on this forum and Im interesting in DAC-9.
I need DAC with good volume control for my Sonodyne SRP-205 speakers.
Do you think this will be a good match?


Sorry for my bad english :oops:

regards,
Simon
Title: Re: DAC-9
Post by: RafaPolit on 23 Jul 2018, 06:04 pm
Hello Simon,

Before any definitive answer, there may be some terminology that needs to be explained.  The DAC-9 is a Digital Analog Converter which will make a digital signal such as a Computer USB, or TV Optical 'toslink' output into analog sound, and output that through its RCA or XLR connectors, with a very good Pre Amplifier in there for volume control.  In that regard, the DAC-9 would be great.  But the output of the DAC-9 is a LINE LEVEL output.

Most speakers would require a power AMP to change that signal into speaker signal-levels.  Since your speakers are powered speakers (they have an in-built amplifier), then yes, all you would need is a good DAC + PRE (like the DAC-9 or DAC-10) and you are set to go!

But since you probably already knew this, what exactly is it that you are inquiring? Where you asking for synergy between those two components and their sound characteristics? or just asking if they would pair together correctly?

Best regards,
Rafa.
Title: Re: DAC-9
Post by: simon740 on 24 Jul 2018, 07:57 am
Hello Simon,

Before any definitive answer, there may be some terminology that needs to be explained.  The DAC-9 is a Digital Analog Converter which will make a digital signal such as a Computer USB, or TV Optical 'toslink' output into analog sound, and output that through its RCA or XLR connectors, with a very good Pre Amplifier in there for volume control.  In that regard, the DAC-9 would be great.  But the output of the DAC-9 is a LINE LEVEL output.

Most speakers would require a power AMP to change that signal into speaker signal-levels.  Since your speakers are powered speakers (they have an in-built amplifier), then yes, all you would need is a good DAC + PRE (like the DAC-9 or DAC-10) and you are set to go!

But since you probably already knew this, what exactly is it that you are inquiring? Where you asking for synergy between those two components and their sound characteristics? or just asking if they would pair together correctly?

Best regards,
Rafa.

Hello Rafa,

yes Im asking for synergy between DAC-9 and Sonodyne SRP-205.
Because this speakers have a little "studio sound signature" I think it will be Ok If some warmth of DAC-9 will be add. But in the same time I like transparent sound. Open sound without too sharp sound. For now I have this speakers paired with Topping D30 (with XLR to RCA cable - this is just for now) and the sound is open, transparent...But of course I need a really balanced dac for best sound.
I like DAC-10 too, but I'm a little afraid of "sabre glare".

regards,
Simon
Title: Re: DAC-9
Post by: KLH007 on 25 Jul 2018, 03:28 pm
I own a DAC9 for a second system, just a hint of warmth and great preamp built in, should be a good match for your active speakers.
Title: Re: DAC-9
Post by: simon740 on 25 Jul 2018, 04:27 pm
I choose between Nuprime DAC-9 and RME ADI-2 DAC  :| :? hmm...
difficult choices :?
Title: Re: DAC-9
Post by: envydd on 25 Jul 2018, 07:36 pm
If you are considering the R2Rs, why not DAC-9. For my second system, I would either buy a cheap DAC from massdrop/amazon (e.g. Topping D50/D7xs) which have awesome technical reviews (https://www.audiosciencereview.com) or something that I have listened to myself in person (e.g. NuPrime DAC-9/10 series)!
Title: Re: DAC-9
Post by: grubyhalo on 25 Jul 2018, 08:02 pm
I choose between Nuprime DAC-9 and RME ADI-2 DAC  :| :? hmm...
difficult choices :?

Get a used DAC-9 for around $500-$600, you can sell it without too much of a loss if you don't like it.
Title: Re: DAC-9
Post by: simon740 on 25 Jul 2018, 08:19 pm
Get a used DAC-9 for around $500-$600, you can sell it without too much of a loss if you don't like it.

Im from Europe (Slovenia) and it is almost imposible to buy used one. The new one from Germany is 845€. The ADI-2 DAC is 999€.

regards,
Simon
Title: Re: DAC-9
Post by: grubyhalo on 25 Jul 2018, 08:54 pm
Here are a few options, including in Europe:

https://www.hifishark.com/search?q=nuprime+DAC-9
Title: Re: DAC-9
Post by: simon740 on 26 Jul 2018, 11:21 am
Here are a few options, including in Europe:

https://www.hifishark.com/search?q=nuprime+DAC-9

Thank you. I will check a little...

Title: Re: DAC-9
Post by: simon740 on 26 Jul 2018, 11:23 am
I choose between Nuprime DAC-9 and RME ADI-2 DAC  :| :? hmm...
difficult choices :?

Has anyone compared those two DACs?
Title: Re: DAC-9
Post by: kaka89 on 26 Jul 2018, 04:04 pm
Has anyone compared those two DACs?

I have.
Headfonics has reviews on both units and I agree with the author's listening impression.
RME ADI-2 DAC has a more natural presentation and very powerful features.
If you need analog preamp (RCA) then only DAC-9 can do that.

I have used 3 DACs at home, Nuprime DAC-9, RME ADI-2 DAC and Lumin D1, they all have its own unique feature

- Lumin D1 for people who already have a preamp/integrated amp and only need a streamer
- RME ADI-2 DAC for people who want to play with EQ and don't mind all digital product
- Nuprime DAC-9 for people who want analog preamp
Title: Re: DAC-9
Post by: simon740 on 26 Jul 2018, 05:04 pm
I have.
Headfonics has reviews on both units and I agree with the author's listening impression.
RME ADI-2 DAC has a more natural presentation and very powerful features.
If you need analog preamp (RCA) then only DAC-9 can do that.

I have used 3 DACs at home, Nuprime DAC-9, RME ADI-2 DAC and Lumin D1, they all have its own unique feature

- Lumin D1 for people who already have a preamp/integrated amp and only need a streamer
- RME ADI-2 DAC for people who want to play with EQ and don't mind all digital product
- Nuprime DAC-9 for people who want analog preamp

Oh..nice.
I dont have any analog device, so analog IN is not important. I just need somethink to drive my active speakers  :)
Somethink with very good volume control so the music will not loose any bits  :|
DAC-9 is very interesting too because of this http://nuprimeaudio.com/product/wr-100/?v=ce774d9cab3a
So no need for another streamer.
Title: Re: DAC-9
Post by: pewe on 1 Aug 2018, 02:56 pm
NuForce P8 to DAC-9, go ahead it is a no brainer upgrade.

I ordered a slightly used silver DAC-9 this morning, it's replacing my Nuforce P8 pre-amp. For amplification I'm using Nuforce Ref. 9 v2. Looking really forward to this upgrade! Taking a bit of a chance as I haven't been able to try it at home.

First, I was thinking about the DAC-10 and I'm sure it's a wonderful thing but I've never really liked the ESS-Sabre sound, somehow it doesn't work with my equipment.

If anyone is interested I could give a quick review when the DA-9 has arrived.
Title: Re: DAC-9
Post by: RafaPolit on 2 Aug 2018, 05:18 am
Pewe, yes, please! For me, more than a review, of which there are plenty for the DAC-9, a comparison of sorts would be much appreciated!

The more I read reviews, the less useful I find them.  Every review you read would seem like it's the best thing out there.  A review of the STA-9 reads just a nice as one of the ST-10, and in turn, one of the Evo One as well, and then you read the review of a $100K amp, and it reads just the same.  So I am beginning to long for comparisons, so that we could start really describing the real character of products instead of homogeneous praise all over the place.

Thanks! Looking forward to your impressions,
Rafa.
Title: Re: DAC-9
Post by: pewe on 2 Aug 2018, 07:42 am
RafaPolit:I will write something about the DAC-9 when it has arrived and I've made some listening. Agree, and I also think that there is to much focus on technical specs on hifi-gears which is not always an indicator that it sounds good.

The best equipment, in my experience, is when the producer actually have done listening tests before realeasing the product. You will be surprised how seldom this happens in the hifi world!
Title: Re: DAC-9
Post by: simon740 on 2 Aug 2018, 09:08 am
I ordered a slightly used silver DAC-9 this morning, it's replacing my Nuforce P8 pre-amp. For amplification I'm using Nuforce Ref. 9 v2. Looking really forward to this upgrade! Taking a bit of a chance as I haven't been able to try it at home.

First, I was thinking about the DAC-10 and I'm sure it's a wonderful thing but I've never really liked the ESS-Sabre sound, somehow it doesn't work with my equipment.

If anyone is interested I could give a quick review when the DAC-9 has arrived.

Yes...please. Because I still looking DAC for my active speakers  :oops: :|

regards,
Simon
Title: Re: DAC-9
Post by: simon740 on 7 Aug 2018, 09:37 am
*pewe*
do you have a dac-9 already?

regards,
Simon
Title: Re: DAC-9
Post by: pewe on 7 Aug 2018, 02:30 pm
Yes, I got the DAC-9 last friday so it is up and running. It's a wonderful machine. The DAC replaced my Nuforce P8 preamp and HifiMe Sabre ESS dac and is paired with my Nuforce REF 9 V2 mono blocks. Speakers are Mark&Daniel Maximus Monitor. There is a very big difference to the sound. Much more organic and more musical, I'm glad to report!

First, build quality is good and solid and the remote has a nice feel to it with rubber buttons. The DAC 9 also looks much better than in pictures and feels wonderful to operate. Musically, the DAC 9 vs. the HifiME dac, well there is just no comparison. THe DAC9 is so much more liquid and "right". Perhaps it's just me but I have never liked the ESS Sabre chip, sure resolution is there but IMHO the sound have a tendency to become to a bit bright.

With the DAC 9 the overall impression is a much more musical presentation. You don't analyze the music, you are just drawn into the experience and that's the best praise I can give. The sound feels powerful with several layers of information. I also tried the analog RCA-inputs and indeed, that is a very good pre amp.

Overall, super happy with my purchase and I believe that any music lover or audiophile would love this machine. Extremely good value.

Title: Re: DAC-9
Post by: RafaPolit on 7 Aug 2018, 04:11 pm
Great to hear, thanks for the opinion.  Helps a lot!
Title: Re: DAC-9
Post by: simon740 on 7 Aug 2018, 04:44 pm
Yes, I got the DAC-9 last friday so it is up and running. It's a wonderful machine. The DAC replaced my Nuforce P8 preamp an dac and is paired with my Nuforce REF 9 V2 mono blocks. Speakers are Mark&Daniel Maximus Monitor. There is a very big difference to the sound. Much more organic and more musical, I'm glad to report!

First, build quality is good and solid and the remote has a nice feel to it with rubber buttons. The DAC 9 also looks much better than in pictures and feels wonderful to operate. Musically, the DAC 9 vs. the HifiME dac, well there is just no comparison. THe DAC9 is so much more liquid and "right". Perhaps it's just me but I have never liked the ESS Sabre chip, sure resolution is there but IMHO the sound have a tendency to become to a bit bright.

With the DAC 9 the overall impression is a much more musical presentation. You don't analyze the music, you are just drawn into the experience and that's the best praise I can give. The sound feels powerful with several layers of information. I also tried the analog RCA-inputs and indeed, that is a very good pre amp.

Overall, super happy with my purchase and I believe that any music lover or audiophile would love this machine. Extremely good value.

Thank you for that  :banana piano:
I use this : https://hifimediy.com/sabre-dac-uae23 in the past. Didnt like it.
Now I use Topping D30. It is Ok. Very transparent, but with some bad recordings  :bawl:
And I need real balance DAC/preamp for my SRP 205.
Now I have to decide between the used DAC-9 (650 €) one year old and completely new for 845€

regars,
Simon
Title: Re: DAC-9
Post by: pewe on 7 Aug 2018, 05:51 pm
I got my DAC 9 from a dealer here in Sweden, it was a demo uniti with full warranty.
Title: Re: DAC-9
Post by: simon740 on 8 Aug 2018, 08:43 am
I got my DAC 9 from a dealer here in Sweden, it was a demo uniti with full warranty.

Can you please tell me which dealer is that?

Simon
Title: Re: DAC-9
Post by: pewe on 8 Aug 2018, 11:18 am
Sure, go to www.fyndborsen.se. Under "demo/used" there apparently seems to be a DAC-9 demo unit available for 4990 SKR. (I also know that this dealer good give you a very good price on a new unit, PM me for more info!)

I also want to add further comments about the DAC9, I listened a couple of hours last night. Over the years I've listened to many high-end components and many times I've been disappointed. Sure, they all have their merits but what they ultimately lack is musicality. With the DAC9 I think that it is a component that sounds right from the start. It's richer and more "dense", more engaging than many other components I've heard.

Now, my system sound very different - in a good way.  :D

Title: Re: DAC-9
Post by: pewe on 12 Aug 2018, 09:50 am
Some pics of the DAC9 in my system together with the mighty Mark&Daniel Maximus Monitor.

(https://www.audiocircle.com/image.php?id=183316)

(https://www.audiocircle.com/image.php?id=183317)

Next step is to replace the Nuforce monoblocks. Can't decide between two STA9 or ST10. Any advice?



Title: Re: DAC-9
Post by: simon740 on 12 Aug 2018, 01:03 pm
*pewe* nice looking setup  :guitar:


One more question: Has anyone connected the phono preamplifier (+ turntable) to the analog input on the DAC-9?

regards,
Simon
Title: Re: DAC-9
Post by: pewe on 12 Aug 2018, 03:00 pm
Haven't tried a turntable but I'm sure it works fine,  the preamp on the DAC 9 is excellent. I hooked up my old cd player to the RCA input and it almost felt like a new player 😀
Title: Re: DAC-9
Post by: simon740 on 16 Aug 2018, 01:35 pm
Thank you @pewe


 One more question: Has anyone connected the phono preamplifier (+ turntable) to the analog input on the DAC-9?

Anybody else?
Title: Re: DAC-9
Post by: John Casler on 16 Aug 2018, 06:36 pm
Thank you @pewe


 One more question: Has anyone connected the phono preamplifier (+ turntable) to the analog input on the DAC-9?

Anybody else?

I have MANY NuPRIME DAC-9 customers who have done just that, and all are quite happy, and no reported issues.
Title: Re: DAC-9
Post by: simon740 on 17 Aug 2018, 10:26 am
What do you think which is better : nuprime dac-9 or Linn Majik Kontrol? Only as a preamp.
I'm looking at Linn because of the phono input. For my Linn Sondek LP12.

regards,
Simon
Title: Re: DAC-9
Post by: rustydoglim on 20 Aug 2018, 07:02 am
In this case you should consider HPA-9
Title: Re: DAC-9
Post by: simon740 on 20 Aug 2018, 11:01 am
No no...I will buy a dac-9  :) because I need a DAC too..and because XLR output for my active speakers.
I than I will buy some seperate phono for my LP12.
Title: Re: DAC-9
Post by: spidermeng on 25 Aug 2018, 11:11 am
Hi guys,
I plan to buy official T1A fuse as backup for future.

May i know where can i get it? 

Thank you.
Title: Re: DAC-9
Post by: mvm on 29 Sep 2018, 12:12 pm
Can anyone please tell me at what volume level is DAC-9 at 0 gain?

Is the 99th step 0 gain? I've read somewhere its the 94th step or the 81st step. Connection to pre is via RCA, if that makes a difference.

I haven't been able to find a straight answer for this, so some clarity would be greatly appreciated.

Thanks,
Martin
Title: Re: DAC-9
Post by: rustydoglim on 1 Oct 2018, 05:41 am
volume level : 94 = 0dB=4Vrms
Title: Re: DAC-9
Post by: mvm on 1 Oct 2018, 10:23 am
Good morning Rusty,

Thank you for this. Am I then to understand that volume level 47 = 2Vrms?

Best regards,
Martin
Title: Re: DAC-9
Post by: rustydoglim on 2 Oct 2018, 04:39 am
NO, it is not linear.
Title: Re: DAC-9
Post by: mvm on 2 Oct 2018, 08:56 am
Ahh,

So where would 2Vrms be?

Thank you,
Martin
Title: Re: DAC-9
Post by: JackD on 3 Oct 2018, 02:37 am
It's still 94
Title: Re: DAC-9
Post by: RafaPolit on 3 Oct 2018, 04:37 am
???? What? No, obviously not! 94 will give 4V Rms max, when the input is 2V Rms.  So no, 94 is NOT 2V Rms, and knowing the 2V Rms max is useful if you are looking to use the DAC to input another PRE (obviously, not bypassing the PRE functionality itself) for those PREs that have a maximum input of 2.3VRms, which is very common.  So please don't confuse people that are asking genuinely useful questions!
Title: Re: DAC-9
Post by: JackD on 3 Oct 2018, 05:29 am
Rafa

You are wrong. The unity gain setting for the DAC-9 is 94 for either output just like it is 93 for both outputs on the DAC-10.  The SE voltage is half of the voltage of the XLR output but it takes the same gain setting to get there. Not sure as an IDA-8 owner how you would know I was wrong.  I actually have experience with the gear in question or I don't answer or get involved.
Title: Re: DAC-9
Post by: mvm on 3 Oct 2018, 09:27 am
Jack how can a volume level of 94 be both 4Vrms, and 2Vrms simultaneously?
Title: Re: DAC-9
Post by: RafaPolit on 3 Oct 2018, 01:26 pm
JackD, the unity gain on the DAC-10 is 93 for the low gain setting where you get 2V in and 2V out.  At the high gain setting, at 93 vol you have 2V in and 4V out.

The fact that with the DAC-9 you don't get switchable gain, it always stays at this 'high' value.  While I agree that 94 is the value where the signal is not affected by the attenuation or volume control, there is still a 6dB (double voltage) gain.  At full 2V in, that would yield 4V out.

There are a number of devices that have a max input of 2V.  So, for those, and having a fixed gain setting, we would need to know the volume value that, while attenuating and possibly degrading ever so lightly the signal, achieve a 2V output.

And it doesn't matter at all what equipment I have to know you could be wrong, but I have DAC-10, ST-10 and uDSD.  Never have seen an Ida-8.  Not sure how that was relevant, though.

Rafa.
Title: Re: DAC-9
Post by: JackD on 3 Oct 2018, 03:07 pm
Rafa

If we use your and mvm's logic and the unity gain setting on the DAC-10 for 2 volts is 93 on the low setting for the SE outputs then tell me what it is for the XLR outputs
on the low gain setting since the volume control only goes to 99. A simple solution to this is to use both outputs and measure with an actual SPL meter or an SPL app on your phone.  The voltage output on the DAC-9's outputs are standard. Voltage and gain are not the same things.
Title: Re: DAC-9
Post by: mvm on 3 Oct 2018, 10:51 pm
Jack, I wasn't arguing with you, I was asking.
To be honest I still don't actually understand how it could be the same at the same attenuation level?

Best,
M,
Title: Re: DAC-9
Post by: JackD on 4 Oct 2018, 12:20 am
mvm

Changing from the SE to the XLR outputs involves changing the output voltage not the gain supplied to the outputs.  From the website product description.

"Individually adjustable volume on each input for precise level matching of sources. If DAC-9 is connected to another preamp or home theater AVP, set the volume @ 94, which is 0dB." No differentiation of outputs is listed.
Title: Re: DAC-9
Post by: simon740 on 14 Dec 2018, 03:04 pm
".....
Title: Re: DAC-9
Post by: simon740 on 18 Dec 2018, 03:08 pm
Hello,

can somebody tell me, how much mV is output on RCA and XLR ?

regards,
Simon
Title: Re: DAC-9
Post by: simon740 on 20 Dec 2018, 04:03 pm
Hello,

yesterday I got DAC-9  :D
I conect it with my Sonodyne SRP 205 speakers.
 :o wauu ---very happy about what Im hearing.
How many hours "burn in" need this DAC?

Sorry for my bad English :|


regards,
Simon
Title: Re: DAC-9
Post by: John Casler on 20 Dec 2018, 04:33 pm
Some say 50-150 hrs, and some find it all there "out of the box".

With the goals of that speaker in mind, it should be an excellent match.

Title: Re: DAC-9
Post by: giordy60 on 20 Dec 2018, 06:51 pm
Some say 50-150 hrs, and some find it all there "out of the box".

John
but it is important to burn in?
Title: Re: DAC-9
Post by: simon740 on 20 Dec 2018, 08:40 pm
Some say 50-150 hrs, and some find it all there "out of the box".

With the goals of that speaker in mind, it should be an excellent match.

Ok. Thank you.

regards,
Simon
Title: Re: DAC-9
Post by: John Casler on 20 Dec 2018, 09:08 pm
John
but it is important to burn in?

Yes, I think now days most aficionados tend to feel that putting a few hours on a component, and listening to it "warm" can affect the sound.

How much is still debated.

I tend to think 50-150 hours might insure that the sound will not change too much after that period.

Title: Re: DAC-9
Post by: simon740 on 2 Jan 2019, 03:25 pm
Hello,

I use a USB input on DAC 9.
Has anyone compared other inputs to USB?
The source is diy linux player. It only has usb output.
So maybe I'm thinking of some DDC (digital to digital converter).
For example, Singxer-su-1 ..
What do you think?

regards,
Simon
Title: Re: DAC-9
Post by: witchdoctor on 2 Jan 2019, 03:42 pm
Hello,

I use a USB input on DAC 9.
Has anyone compared other inputs to USB?
The source is diy linux player. It only has usb output.
So maybe I'm thinking of some DDC (digital to digital converter).
For example, Singxer-su-1 ..
What do you think?

regards,
Simon

I think you want to run as few connections as possible, keep USB. You might want to experiment with cables though.

https://shop.mapleshadestore.com/USB-Cables/departments/306/

https://www.amazon.com/Pangea-Audio-Premier-Cable-Meter/dp/B06ZYC862F/ref=sr_1_3/135-7632702-3096825?ie=UTF8&qid=1546443701&sr=8-3&keywords=pangea+usb+cable
Title: Re: DAC-9
Post by: simon740 on 4 Jan 2019, 01:59 pm
Hello,

I use a USB input on DAC 9.
Has anyone compared other inputs to USB?
The source is diy linux player. It only has usb output.
So maybe I'm thinking of some DDC (digital to digital converter).
For example, Singxer-su-1 ..
What do you think?

regards,
Simon

anybody else ?

thank you witchdoctor@
Title: Re: DAC-9
Post by: simon740 on 16 Jan 2019, 09:56 am
Hello,

how good is Spdif and AES input on this DAC 9, compare to USB input? Because Im buying a new "transport" for my DAC 9.


regards,
Simon
Title: Re: DAC-9
Post by: rustydoglim on 16 Jan 2019, 08:21 pm
USB is always the best because of asynchronous transfer and higher sampling rate. But then, 24/96K with good recording is all you need.
Title: Re: DAC-9
Post by: simon740 on 17 Jan 2019, 05:23 pm
Hello,

me again  :)
Now I have DAC 9 and Sonodyne SRP 205.
Sound very good.
But what do you think...Is some tube preamp like ARC LS16,17 and higher be better for volume control than
Dac 9?

Sorry for bad English

Simon
Title: Re: DAC-9
Post by: rustydoglim on 17 Jan 2019, 08:09 pm
I think system and device compatibility is important here.
DAC-9 already has an integrated preamp and adding an external preamp at this level is not going to make much of a difference.
Don't rush to upgrade everything all at once, take your time.

Title: Re: DAC-9
Post by: himber on 17 Jan 2019, 10:06 pm
Hello,
I've been testing my new DAC-9 for a week. I have a problem with digital inputs. When I connect the Pioneer PD 9300 CD player, the sound disappears from time to time. After a while the sound comes back. Both at the optical and coaxial input. There is no rule. Sometimes there is no problem for an hour. And sometimes the problem repeats every few seconds.
What is the reason for this?

I tried to connect the Pioneer PD S702 but the DAC-9 does not want to cooperate with it at all (optical).

Thank you for your help.
Title: Re: DAC-9
Post by: Roman Kozak on 20 Jan 2019, 07:57 am
Hello, is it possible to include in the dac-9 instead of the input number, constant readings of the sampling rate? thank
and how to do it at home? thank
Title: Re: DAC-9
Post by: daniele_g on 21 Jan 2019, 09:41 am
Hi,
saturday I had the chance to audition the DAC9, together with the CDT8 transport, in a shop.
rest of the set up:
pre Spectral DMC15
power amp Marantz 'don'tknowthemodel'
speakers Rosso Fiorentino, those who look like a coffin (but they do sound good).
overall impressions are sure good, so good that I'm seriously considering buying the combo to replace my Naim CDX2+esternal PSU, but...
results were clearly better, to my ears, when the DAC9 was driving directly the Marantz power amp, without the Spectral pre: more focus, a less confused sound. so, as I should use the DAC with an int'd amp: is it possible to completely by-pass the DAC9 preamp section ?
Title: Re: DAC-9
Post by: left channel on 21 Jan 2019, 05:07 pm
Hello, is it possible to include in the dac-9 instead of the input number, constant readings of the sampling rate? thank
and how to do it at home? thank

I too would love that, but somewhere on these forums Jason stated it is not possible.
Title: Re: DAC-9
Post by: left channel on 21 Jan 2019, 05:09 pm
as I should use the DAC with an int'd amp: is it possible to completely by-pass the DAC9 preamp section ?

Just turn the DAC-9 volume all the way up to 99. That was Jason's response to the same question earlier in this thread, and that is what I do now that I have mine connected to another preamp.
Title: Re: DAC-9
Post by: zappan on 21 Jan 2019, 05:26 pm
Just turn the DAC-9 volume all the way up to 99. That was Jason's response to the same question earlier in this thread, and that is what I do now that I have mine connected to another preamp.
94 is 0dB for DAC-9, not 99.
Title: Re: DAC-9
Post by: left channel on 21 Jan 2019, 05:28 pm
94 is 0dB for DAC-9, not 99.

Interesting. Then why does it go up to 99?
Title: Re: DAC-9
Post by: daniele_g on 21 Jan 2019, 05:38 pm
Just turn the DAC-9 volume all the way up to 99. That was Jason's response to the same question earlier in this thread, and that is what I do now that I have mine connected to another preamp.

that's what I did first with the Spectral pre; nevertheless, to my ears sound got better (not "dramatically", but clearly) when the Spectral "went out" and the DAC was directly connected to the Marantz power amp.
as I assume the Spectral is a very good pre, may it be just a matter of impedance mismatch or something like that ? some sort of "electric conflict"* ?
or maybe my ears are defective....
*guess that may be hi-fiction....

@left channel: PS: have you tried connecting the DAC9 directly to your power amp ?
Title: Re: DAC-9
Post by: Samoyed on 21 Jan 2019, 05:58 pm
I found that my DAC 10 and Evo DAC each sounded better directly driving an amp. Specifically, each had a superior soundstage.
Title: Re: DAC-9
Post by: left channel on 21 Jan 2019, 06:19 pm

@left channel: PS: have you tried connecting the DAC9 directly to your power amp ?

I have and that sounded good too, but my Anthem AVM 60 is quite transparent and I have all processing turned off when the DAC-9 is selected. The DAC-9 is fed by a CDT-8 Pro via coax and a fanless mini PC with ISO REGEN via USB.

Still waiting for a reply from @zappan on why 94 would be 0 dB. That is not in the manual, which mentions only that there are 99 increments. I see 94 dB mentioned here and there on this forum, but only one person quotes a source which may have been preliminary marketing info only.
Title: Re: DAC-9
Post by: Samoyed on 21 Jan 2019, 06:29 pm
According to Rusty, it varies from model to model.
Title: Re: DAC-9
Post by: daniele_g on 21 Jan 2019, 06:35 pm
thanks, left channel.
sure due to my bad English, though, I did not understand if you made the comparison with all other "parameters" unchanged or not, i.e. if the conditions "with or without preamp" were same and thus really comparable.

dealing with the 94-99: I don't have a sure answer, but it would seem logical to me that 99 = 0dB, as I assume that means "no attenuation"; the retailer who demoed the CDT8-DAC9 combo for me, who is also the italian NuPrime distributor, agreed with that.
Title: Re: DAC-9
Post by: left channel on 21 Jan 2019, 06:46 pm
@daniele_g I agree, 99 is likely 0 dB. For my comparison, I was simply saying that my preamp does not change the sound. Some preamps do change the sound.
Title: Re: DAC-9
Post by: zappan on 21 Jan 2019, 08:31 pm
Still waiting for a reply from @zappan on why 94 would be 0 dB. That is not in the manual, which mentions only that there are 99 increments. I see 94 dB mentioned here and there on this forum, but only one person quotes a source which may have been preliminary marketing info only.

Haha, how the hell should I know why  :D :D

It’s just that it’s been said in this topic, a page before your initial comment on 99: https://www.audiocircle.com/index.php?topic=138601.msg1707339;topicseen#msg1707339
Title: Re: DAC-9
Post by: left channel on 21 Jan 2019, 09:33 pm
Haha, how the hell should I know why  :D :D

It’s just that it’s been said in this topic, a page before your initial comment on 99: https://www.audiocircle.com/index.php?topic=138601.msg1707339;topicseen#msg1707339

THANK You. I used the search feature here but did not find that somehow. If Jason says so, it must be true, but I'm still mystified as to why the dial goes to 99 and why this is not mentioned in the manual.  Is this the same as "turning it up to 11"?  :-D
Title: Re: DAC-9
Post by: RafaPolit on 22 Jan 2019, 04:24 am
I believe it's not a 'by-pass', but unity gain.

At 94, if you input 2V, you get 2V at the output.  At 99, you will get more than 2V (no idea how much more).

Ideally, this holds true to every voltage, so an input of 0.4V would also yield 0.4V at 94, that would mean it's perfectly linear and, therefore, as much a by-pass as possible.

So, bottom line, these are not by-passes, they are just the value where the input matches the output.  So, for a perfectly linear PRE with a 2x gain, that value would be at half the travel, or 50 in this case.  I don't see why you would think that maximum should be unity gain? 
Title: Re: DAC-9
Post by: Samoyed on 22 Jan 2019, 05:01 am
I think you are right. Rusty posted that zero dB varies with each model.
Title: Re: DAC-9
Post by: daniele_g on 22 Jan 2019, 08:04 am
yes, 94 is 0dB, not 99 as I thought.
I should try DAC9 set at 94 with my integrated amp. I think I'll ask the dealer to have it at home for some days.
Title: Re: DAC-9
Post by: rustydoglim on 22 Jan 2019, 10:20 am
The so called Bypass for inputs is an outdated concept. You still need a switch (which has resistance), so there is no such thing as mysterious bypass. If a DAC has good preamp (switch resistors), then it is as good as a switch.
That's what we did for DAC-10 and DAC-9. If the input is analog, it goes through the preamp. And the DAC output goes through the preamp switch as well, but we don't use the preamp to control the volume of the DAC, because the digital volume control within the DAC does a better job.  The analog part of the preamp volume control is only for the analog input.


Title: Re: DAC-9
Post by: daniele_g on 22 Jan 2019, 11:46 am
sorry, rustydoglim,
I did not get it (I'm hardheaded).
assume I have CDT8+DAC9 (as I'm considering), plus a phono preamp which goes into the analog input.
the analog signal goes into the preamp section of DAC9, which attenuates (or anyway controls) it as any other preamp.
the digital signal volume is controlled by a digital volume control, then, after "regulated" by internal switch resistors (right ?), goes into the preamp section, which does... what does the preamp do in this case ? absolutely nothing, like some sort of cable with no gain, or what ?
Title: Re: DAC-9
Post by: rustydoglim on 22 Jan 2019, 11:58 am
sorry, rustydoglim,
I did not get it (I'm hardheaded).
assume I have CDT8+DAC9 (as I'm considering), plus a phono preamp which goes into the analog input.
the analog signal goes into the preamp section of DAC9, which attenuates (or anyway controls) it as any other preamp.
the digital signal volume is controlled by a digital volume control, then, after "regulated" by internal switch resistors (right ?), goes into the preamp section, which does... what does the preamp do in this case ? absolutely nothing, like some sort of cable with no gain, or what ?

See this FAQ:  https://nuprimeaudio.com/ufaqs/what-kind-of-volume-control-and-preamp-do-you-use-for-your-dac/
If the input is digital, then the DAC's analog output goes through the preamp with minimal attenuation.
Title: Re: DAC-9
Post by: daniele_g on 22 Jan 2019, 01:16 pm
thanks !  :wink:
now it is clear to me, and I see you provided what you consider the best solution for digital preamplification and the best for analog preamplificaion. chapeau.
I must admit I misunderstood your sentence "the digital volume control within the DAC does a better job": I thought you meant "the digital volume control is OK, the analog one... not same level" and that worried me, as I may need an analog preamp section to connect my RIAA preamp to.
Title: Re: DAC-9
Post by: himber on 22 Jan 2019, 08:01 pm
Hello,
I've been testing my new DAC-9 for a week. I have a problem with digital inputs. When I connect the Pioneer PD 9300 CD player, the sound disappears from time to time. After a while the sound comes back. Both at the optical and coaxial input. There is no rule. Sometimes there is no problem for an hour. And sometimes the problem repeats every few seconds.
What is the reason for this?

I tried to connect the Pioneer PD S702 but the DAC-9 does not want to cooperate with it at all (optical).

Thank you for your help.


Hi,
can anyone help me? It's about the problem above.
Title: Re: DAC-9
Post by: rustydoglim on 22 Jan 2019, 11:10 pm
I think the Pioneer CDP optical output has too much jitter.  Try using an optical to coaxial converter (it cost less than $30 on Amazon.com).
Title: Re: DAC-9
Post by: tudorbuda on 1 Feb 2019, 01:35 pm
Hello again

still having issues with my DAC 9 & 2x STA 9. The dac has a transformer buzzing noise, even with no other than power cable being connected. It has it either with a cheat cable or with a normal grounded one. Even with the dac turned off, as soon as i flip the power switch, it starts buzzing/humming. When i turn it on, he humming changes just a bit in frequence. I don't know if it just recently started buzzing, or just now i noticed, due to lowering of the ambient noise (i had central air ventilating)
not to mention that i never got rid of the speaker buzzing when the dac is connected by USB. it's connected by optical cable, even tho i lose a bit of detail and dynamics, but  at least there's no buzz.
it's starting to get on my nerves, like one of my Sunfire True Signature subs that has the same transformer issue and therefore i keep it unplugged. The other one doesn't.
Title: Re: DAC-9
Post by: rustydoglim on 1 Feb 2019, 10:11 pm
The linear transformer inside could be loose.  Try opening the cover and see if there is a screw to tighten it. is not tightly secure, you can hear the hum.  This is the same AC hum that you hear went walking pass large transformer
Title: Re: DAC-9
Post by: tudorbuda on 2 Feb 2019, 03:29 pm
wouldn't that void the warranty?
i could try that, even tho it doesnt seem to be some resonance sound, like it isn't bolted on and it vibrates. It's exactly that large transformer hum. Does it mean that it's a faulty one? As i said, in my identical subwoofers, one of them hums and pops, the other one doesnt. There was a fix on their website, they replaced some of the components, but you had to send it in and pay about $400.
also, the transformers in my other amp (Rotel Rb 1090) are huge, 1.2kwa each and there is 0 hum, so there must me something wrong.
Title: Re: DAC-9
Post by: tudorbuda on 12 Feb 2019, 01:32 pm
it's starting to get on my nerves. I don't know if it sounds louder and louder, or is it just in my head, but i'd like it to be fixed. Please tell me if opening it would void the warranty, so i can try that before contacting Nuprime in France.
Thank you!
Title: Re: DAC-9
Post by: rustydoglim on 13 Feb 2019, 08:27 pm
I told you to open it, so how can that void the warranty? :) We are not that kind of company who nickle and dime customers. Never in our history.

Title: Re: DAC-9
Post by: seikosha on 13 Feb 2019, 08:47 pm
Many times when a toroidal transformer is humming it means that there is DC Offset in your power line.  Do you have the ability to try plugging it in to other plugs on another circuit or even try it at a friend's house to see if it still hums?
Title: Re: DAC-9
Post by: simon740 on 15 Feb 2019, 08:38 am
Hello,

has anyone noticed that some "strange sounds" arise through usb input, if DAC 9 is connected to a PC?
If I have DAC 9 connected to the linux diy player, these noises are much less, but if I connect to the HTPC, there are many more noise, buzz.
How is the usb input on DAC 9 designed?

regards,
Simon
Title: Re: DAC-9
Post by: srb on 15 Feb 2019, 09:51 am
has anyone noticed that some "strange sounds" arise through usb input, if DAC 9 is connected to a PC?

Some PCs do have noisier USB circuitry than others, but are you bypassing the Windows internal audio mixer with an ASIO or WASAPI driver?
Title: Re: DAC-9
Post by: simon740 on 15 Feb 2019, 10:17 am
Yes I use foobar with asio and wasapi drivers.
But some people say that this is the usb implementation problem in the DAC itself.
Title: Re: DAC-9
Post by: rustydoglim on 18 Feb 2019, 02:52 pm
The noise could be from the PC ground. Try different USB port. Otherwise you can try those USB isolator. But keep in mind that you can get a good mini PC for less than $500, so might be better to get rid of old PC.
Title: Re: DAC-9
Post by: JulienS on 26 Feb 2019, 09:59 am
Hey guys!
I just got a DAC-9 few days ago.
Superb DAC! So smooth and analog sounding.

Anyway, just for the sake of curiosity, can anyone please tell me how is the DSD processed inside DAC-9?
Natively or converted to PCM before output?

Thanx!
Title: Re: DAC-9
Post by: JulienS on 27 Feb 2019, 09:11 am
Hello,

has anyone noticed that some "strange sounds" arise through usb input, if DAC 9 is connected to a PC?
If I have DAC 9 connected to the linux diy player, these noises are much less, but if I connect to the HTPC, there are many more noise, buzz.
How is the usb input on DAC 9 designed?


Well, I have just noticed that I have the same problem, lots of noise through USB into DAC. You can hear it when nothing is played and you increase the amplifier's volume.
However, this only happens when the notebook is connected to the mains, when it is on battery it is totally silent.
Maybe an externally powered USB hub would help? Anyone tried this?
Title: Re: DAC-9
Post by: rustydoglim on 27 Feb 2019, 09:37 am
Get a Mac Mini
Title: Re: DAC-9
Post by: fredgarvin on 27 Feb 2019, 04:19 pm
Well, I have just noticed that I have the same problem, lots of noise through USB into DAC. You can hear it when nothing is played and you increase the amplifier's volume.
However, this only happens when the notebook is connected to the mains, when it is on battery it is totally silent.
Maybe an externally powered USB hub would help? Anyone tried this?

Noise through USB is a common problem, you might try a Schiit Eitr to clean it up and convert it ti coaxial-

https://www.schiit.com/products/eitr
Title: Re: DAC-9
Post by: JulienS on 27 Feb 2019, 04:32 pm
Well, the problem was solved, it was easier than I thought.
It seems that I had some kind of a ground loop. :duh: The notebook and DAC9 were sharing the same power strip. I just moved the DAC-9 into another wall socket and the noise just disappeared completely.
Title: Re: DAC-9
Post by: zapper7 on 6 Aug 2019, 05:05 pm
To help revive this thread, just got a Dac-9 in and sounds great.

I am curious as the Dacs I've had in the past (NAD, Wadia, Oppo 105) I can turn the volume up to 60 - 80 or so while this one hits about 40 and real loud already. Is this a normal thing or how have you all faired with the volume? I use the XLR outputs direct to amp.

Thanks
Title: Re: DAC-9
Post by: seikosha on 6 Aug 2019, 07:57 pm
To help revive this thread, just got a Dac-9 in and sounds great.

I am curious as the Dacs I've had in the past (NAD, Wadia, Oppo 105) I can turn the volume up to 60 - 80 or so while this one hits about 40 and real loud already. Is this a normal thing or how have you all faired with the volume? I use the XLR outputs direct to amp.

Thanks

Volume controls are not universal.  You could put two different volume controls in the same system with drastically different results.  With one, you might not want to turn it past 10 oclock, with another, you might be turning way past halfway.  In addition to that, the output voltage of the DAC's can differ as well causing different levels on the volume controls vs. other units.  It can get complicated.
Title: Re: DAC-9
Post by: rustydoglim on 8 Aug 2019, 01:51 pm
I notice that you use XLR which has twice the output voltage of RCA so if you have spare RCA cables give it a try.
Title: Re: DAC-9
Post by: zapper7 on 8 Aug 2019, 03:06 pm
I have used XLR for all the other DACs, all with your STA-9 amps, and have had very similar volume settings. As long as I'm not doing anything wrong and this unit just has higher gain I'm fine, but can't really get above 50 without being super loud.
Title: Re: DAC-9
Post by: rustydoglim on 8 Aug 2019, 03:16 pm
Nothing wrong with using XLR. Just don't turn the volume up too much.
Title: Re: DAC-9
Post by: simon740 on 16 Aug 2019, 02:48 pm
Hello,

I have my dac 9 conected to active speakers with xlr cables.
Im thinking to add some woofer to my system. If I use RCA output on dac 9 for woofer, will be there any  distortion of sound on XLR output?
Sorry for my bad English..

regards
Simon
Title: Re: DAC-9
Post by: John Casler on 16 Aug 2019, 02:53 pm
That will work fine, with no issues.
Title: Re: DAC-9
Post by: simon740 on 16 Aug 2019, 02:55 pm
That will work fine, with no issues.

Thank you

regards,
Simon
Title: Re: DAC-9
Post by: Jargier on 29 May 2020, 01:23 pm
Hi everyone.
I have a question. Is it possible to dim the LEDs in Dac-9? Can you insert any foil from the inside? How does it look like?
Title: Re: DAC-9
Post by: rustydoglim on 30 May 2020, 12:41 am
A faster and convenient way is to use a dark marker pen with fine tip to darken the LED without opening up the case.
Title: Re: DAC-9
Post by: Jargier on 30 May 2020, 05:14 am
Dark foil would cover all holes at once. But is it possible to put this film between LED and case? I haven't opened the case yet.
Title: Re: DAC-9
Post by: pewe on 7 Nov 2020, 09:19 pm
I have a DAC-9, very happy with it. But, when using my brand new Onkyo cd-player as a transport to the DAC-9 I sometimes get 1 second long sound drop out. Using the coax input. RCA works perfectly. Is this jitter? How do I fix it ?
Title: Re: DAC-9
Post by: rustydoglim on 8 Nov 2020, 04:08 am
Hard to say if the problem is with the Onkyo CDP or DAC-9. We have sold over a thousand Nuprime CDT-8 Pro and many of them are used with DAC-9, never heard such problem.
Title: Re: DAC-9
Post by: pewe on 8 Nov 2020, 09:31 am
Thank you for your answer. It's a strange problem, never heard of it myself. If someone else here has any experience I appreciate your input.
Title: Re: DAC-9
Post by: John Casler on 8 Nov 2020, 05:20 pm
It could be a "digital handshake" delay.

That means the player, or DAC does not sense and connect to the digital stream immediately.

Not sure of any remedy.  It could be a delay in the DAC sensing the stream, the Player not sending, or a weak cable.

You might try switching cables, as well as COAX and OPTICAL.
Title: Re: DAC-9
Post by: pewe on 8 Nov 2020, 06:42 pm
Thanks John. Must be the cable or the cd-player. I'll try another coaxial cable. It's a shame, because when I use the coaxial input on the DAC-9 the sound is excellent. Just these  distracting drop outs...
Title: Re: DAC-9
Post by: Jargier on 9 Nov 2020, 04:39 pm
I had a similar problem. Two sources / amplifiers were connected and when I only turned on the power one, the signal disappeared from the first one. Weird. Could this be a "ground loop" problem !?
Title: Re: DAC-9
Post by: grubyhalo on 15 Dec 2020, 07:03 pm
Hi all

Does anyone here know the input impedance of the analog line-in for the DAC-9? Thanks in advance.

Cheers.
Title: Re: DAC-9
Post by: grubyhalo on 16 Dec 2020, 12:05 pm
Looks like the Input impedance is 470k Ohms, according to Support
Title: Re: DAC-9
Post by: mresseguie on 16 Dec 2020, 02:09 pm
You found it! Good.

I spent about ten minutes searching the Nuprime website but came up with nothing for the DAC-9.

Michael
Title: Re: DAC-9
Post by: robt on 6 Jan 2021, 04:17 pm
Hi everyone , my first post ! My out of warranty dac 9 got smoked due to a power surge , funny it was the only device in my rack that was damaged ,the transformer had a major meltdown , Nu prime was good enough to send a replacement transformer gratis but it got very hot right away so it was unplugged , so indicates a short on the dac board .Are these boards repairable? Replacement boards from Nu prime are almost $500.00 cdn landed so not worth it .Thanks for your time .
Title: Re: DAC-9
Post by: rustydoglim on 10 Jan 2021, 09:33 pm
You should send the DAC-9 to Aamir to find out what's wrong. Perhaps the power supply is not the only one that got fried.
Was it connected to a quality surge protector ?
Title: Re: DAC-9
Post by: yotzee on 16 Jan 2021, 11:34 am
Can someone post witch volume number how much voltage level at XLR or RCA has?
I has a Linn Klout amp on RCA at me. I do not want to owerdrive it!
Title: Re: DAC-9
Post by: mchase66 on 21 Mar 2021, 06:28 pm
The earlier threads report that 94 is 2V in, 2V out.
Title: Re: DAC-9
Post by: idv_42 on 20 Sep 2021, 01:12 pm
Hi!
Tell me, what is the maximum signal strength on the analog input? 3 volts from Chord Qutest won't overload it?
Thanks!
Title: Re: DAC-9
Post by: eljr on 29 Jan 2022, 06:09 pm


Because of the DAC with headphone amp, so the headphone amp of DAC-10H is more sophisticated than HPA-9 where it has two levels of gain control (H, L and RCA, XLR).  HPA-9 only has H and L gain control.


What is the gain control and when/how do you use it?
Title: Re: DAC-9
Post by: rustydoglim on 1 Feb 2022, 05:50 am
DAC-9 has no gain adjustment.
Title: Re: DAC-9
Post by: pewe on 2 Feb 2022, 05:52 pm
Perhaps a strange question but is it possible to change the blue lights in DAC-9 and STA-9 to another color? My eyes are a bit sensitive to the blue. Would prefer green. My units are out of warranty so I'm doing it on my own risk. Is this something you could do by yourself?
Title: Re: DAC-9
Post by: eljr on 2 Feb 2022, 10:02 pm
DAC-9 has no gain adjustment.

Dac 10H does, any idea?
Title: Re: DAC-9
Post by: Jargier on 28 Mar 2022, 03:21 am
It was the second time that the Dac-9 coaxial input stopped working. He was in the service (in Poland) and now it has happened again. Coax is dead  :? . I just moved the coax cord. Has anyone had such a problem with coax?
Title: Re: DAC-9
Post by: rustydoglim on 31 Mar 2022, 05:57 pm
Probably moving the cord bended the connector? Did someone tripped over the cord?
Open the cover to see what happened inside, may be it is something very simple to fix by yourself.
Title: Re: DAC-9
Post by: Jargier on 1 Apr 2022, 12:00 am
Thank you for your answer. This is me shifting the coax cord slightly. I opened the lid. This coax connector is integrated with toslink and usb. Everything connected together to the motherboard. The coax slot is not typical. It is all very fragile and unstable. Very delicate. It's the second time the same. All nests are fragile. I am disappointed with such weak connectors.
Title: Re: DAC-9
Post by: rustydoglim on 2 Apr 2022, 06:46 am
This is standard industry parts, not that we have much choice. It is not common that the connector becomes loose. But if this is the case, you might want to send the item for service. Is the cable connector too tight when you push it ? Or the cable too heavy that it pulled down the connector and loosen it over time.
Title: Re: DAC-9
Post by: Jargier on 2 Apr 2022, 11:13 am
Thanks for the hint. The coax cable is Cardas. The fact is, it fits tightly into the socket. Not enough to use force. And the socket is fragile, soldered to the motherboard. It is not a solid structure. Too often, do not disconnect or plug in the coax cable. If it does not move, it is ok. I will loosen the Cardas coax, extend and smear the Caig DeoxIT Gold plug :-). Previously, the service replaced the entire motherboard. Now I have sent to service again. I'll wait for what they say. Thx.
Title: Re: DAC-9
Post by: speltz on 10 May 2022, 10:40 pm
I’d just like to say how impressed I am by the DAC-9. My preamp needed repairs and I knew I was going to be without it for a while. After a bit of research I bought a used DAC-9 because of its analog volume control and its XLR outputs. And the sound quality was everything I had hoped for.

I have my preamp back but I’m still using the DAC-9, now strictly as a DAC, for its ability to convert DSD to analog. (Actually DoP, I gather, but that’s a mere technicality — it’s still DSD.) Once again, the SQ is superb. DSD files from my digital transport via the DAC-9 are superior to the same files outputted from my SACD player directly to my preamp.

Congratulations on making a great product at a real-world price. I made an informed decision when I bought the DAC-9, but it has exceeded my expectations by a considerable margin.