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: Dadbeh 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