AudioCircle
Audio/Video Gear and Systems => Critic's Circle (Equipment Reviews) => Source Component Reviews => Topic started by: JLM on 3 Jan 2016, 02:58 am
-
Otherwise known as DSPeaker. I know this piece was originally introduced in 2012, but I just got one and no one has reviewed it here on AC.
The DSPeaker is a compact combination DAC/preamp/DSP that retails for $1,200 USD. It has a small screen, USB input, optical input/output, RCA or XLR analog input, and both RCA/XLR outputs. It has been well reviewed, primarily only as a DSP, although the DAC/preamp functions are well respected. My previous DAC/preamp was an Emotiva DC-1 that offered additional digital inputs in a slightly larger cabinet, currently available for $400 USD. The rest of my system today would retail for about $5,000 (see my system here at AC) so I felt that it was being under served.
I came from a Behringer DEQ2496, so DSP setup ("calibration") was super easy, even going immediately to the advanced settings. I also engaged the infrasonic filter and boosted the bass compensation. At the beginning of calibration it displays the room response (in my case there was a nice bass roll off and a couple of bumps, but no dips). At the end it displays the before and after results. Compensation is normally needed to offset the loss of "bass bumps". I purposely have not explored the other features that could "create more problems than solutions".
First off, here are some warnings:
1.) The USB input is type mini B, squeezed between the optical and power inputs. Currently trying to find type B female to mini B male adapters and USB cables with mini B male connector (without success). The only adapter I've found is really cheap - $1.22 from Monoprice. The DSPeaker does come with a really tiny 1.8m USB type A male - mini B male cable. The only reference to this mini B input is an overall picture (of of the overall back of the unit on the DSPeaker site. No one online has mentioned it previously.
2.) The remote is really cheap. Credit card size with "bubble buttons". And it's the only means of control.
3.) The power supply is a wall wart (reportedly better than you might imagine and other options are available).
Give me a couple of weeks to allow for break in and I'll get back with sonic impressions...
-
Here’s the follow-up I promised…
First, to address my gripes:
I’ll start with one I didn’t mention previously because I listen exclusively to ALAC or streamed sources: due to the limited capacity of the custom chip used, USB is limited to 24/44 (but does “6.144 MHz oversampling dual per channel”).
I did find a $1.99 Monoprice type B female to mini B male adaptor that fits (barely) between the optical and power inputs and which works just fine. (Whew)
Secondly some folks have been able to program a universal remote to replace the cheap remote. I’m getting used to it (volume adjusts easier than Emotiva DC-1), but do plan on having a back up as there is no other way of controlling the unit.
Reportedly a linear power supply will help the sonics, but haven’t tried one (yet).
Background:
I listen near-field in my well insulated 8ft x 13ft x 21ft study (front dedicated to audio). Speakers are Bob Brines M18-F200, floor-standing transmission lines using a Fostex F200A full range driver (F3=30 Hz) that have been “EnABL’d” and are supplemented with an ambience tweeter (James Romeyn’s Late Ceiling Splash). Amplification via Channel Island Audio D-100 (modded Hypex class D).
I generally do serious listening at 80 – 90 dB, mostly to a variety of jazz with baroque and 50’s pop from two digital sources: iMac via 35ft optical from my desk in the back of the room; and MacBook Air via 10ft USB from my listening chair. Been into stereo/audio for 40 some years (my main past-time in life) but am a cheap bastard. Previous DAC’s include Ack! DAC, Vinnie Rossi’s first (battery powered) DAC, modded Behringer DEQ2496, and Emotiva DC-1. Previous preamps included Channel Island passive, stepped attenuators, Jaton RC2000S, Prima Luna Dialogue Premium (Integrated), and Emotiva DC-1.
Regarding the sonics:.
The DSPeaker is a large improvement over all the above DAC’s and preamps. USB and optical inputs needed separate break-in (about 100 hours each). The following comments are of course recording dependent.
More detail provided throughout (mouth/lip sounds, finger snaps, various instruments are easily identified). The music sounds fatter, juicier with more body. The soundstage has gained depth. The reverb from the original setting can be heard. Bass is tighter, horns no longer harsh but still have “bite”, and seemingly more high frequency emphasis (female sssssh sound), this could be fixed with a better power supply according to some (or adjusting capacitor value on my ambience tweeters). The difference between my sources and various streaming sources is more obvious now.
Conclusion:
The DSPeaker is a real keeper in terms of sonics for the price. Small size and all-in-one form (if that’s what you’re after) can be another plus. But USB being limited to 24/44, the tight rear panel layout requiring use of mini B USB input, the choice of the cheapest possible remote, and poor power supply makes it hard to give a universal endorsement.
-
I have been using an Anti-Mode 2.0 Dual Core for over a year now, and agree that it packs a lot of high-quality functionality into one box. Here are a couple of my experiences, hopefully of help to you:
First, adding a linear power supply, a simple Astron unit, noticeably improved the sound, especially the dynamics. I recommend you experiment.
Second, my remote actually stopped working and, after contacting the company in Finland, they immediately sent two new ones as replacements. I haven't had any trouble with one since, but I wanted to comment on the great customer service extended toward me.
I hope you work out all your issues and are able to make the unit a comfortable part of your system. I have been more than pleased with what it has done in mine.
John
-
JLM,
I have had a Dual Core since the summer of 2012 and agree with you about its performance. The Dual Core is a very powerful piece of gear that IMHO punches way above its price point! I use mine as a Dac, Preamp, and for Room corrections with an IFi iTube at output and a Paul Hynes linear supply.
I would like a Coaxial digital input. My 47 Labs transport is coax and I picked up a Syncro Mesh for conversion to Optical. On a side note the Syncro Mesh is a great little piece and should be considered if no optical from a transport.
Chris
-
I've had one in my system for about 2.5 years. The focus and clarity it provides is a source of much enjoyment. I have gone through several linear power supplies and have found the one sourced from Channel Islands has offered the most top to bottom overall smooth sound. I miss my tubed preamp in the chain. I'm trading detail for some warmth. I go back and forth. I'm using the optical out on a very old JVC XLZ-1010 and 1050. As a spinner it is wonderful. I am in awe of what the DSPEAKER can do with a redbook cd. It is a huge improvement.
I bought the unit as I have a pair of aV123 line source speakers the LS6. They excite the room with bass and get all of the knotty pine on the walls dancing and smearing the sound. What the DSPeaker unit has done to tame bass bringing it inti focus and adding detail is amazing.
I highly recommend this unit. I can only imagine what a Modwright tube addition could do to this unit as a preamp.
-
steve, you heard the dsp and modwright tube preamp in my setup with the 9s and ultimately we decided to go direct to the BMC amps and that combo - DSP, BMC with the 9s was the bomb !!
-
I've had one in my system for about 2.5 years. The focus and clarity it provides is a source of much enjoyment. I have gone through several linear power supplies and have found the one sourced from Channel Islands has offered the most top to bottom overall smooth sound. I miss my tubed preamp in the chain. I'm trading detail for some warmth. I go back and forth. I'm using the optical out on a very old JVC XLZ-1010 and 1050. As a spinner it is wonderful. I am in awe of what the DSPEAKER can do with a redbook cd. It is a huge improvement.
I bought the unit as I have a pair of aV123 line source speakers the LS6. They excite the room with bass and get all of the knotty pine on the walls dancing and smearing the sound. What the DSPeaker unit has done to tame bass bringing it inti focus and adding detail is amazing.
I highly recommend this unit. I can only imagine what a Modwright tube addition could do to this unit as a preamp.
Which Channel Island Audio power supply do you have? Did it come with the appropriately sized jack?
-
Anyone have experience with the HDPlex linear power supply and DSpeaker Anti-Mode 2.0 Dual Core?
-
So I contacted Channel Island Audio and got this response back from Dusty:
"We do make a model for the DSPeaker but it's not on our website (VDC-12
MKII/$329).
It comes standard with a 5.5mm/2.5mm connector. The DSPeaker uses 2.1mm
center pin, so we include an adapter."
After my credit card has had a chance to recover I'll order it and will report back. Right now I'm absolutely loving Patricia Barber's "Modern Cool" album.
-
OK, here's the followup from adding the Channel Island Audio VDC-12 MkII:
Improved dynamics (rather subtle - speaker limitations?);
Overall sound is less etched;
Less female sibilance (frankly a significant relief even for these old ears).
-
JLM,
Glad to see you took the plunge and upgraded the power supply and you can hear the positive results.
Chris
-
I've not actually used the dSpeaker but having done research, my understanding is that:
1. Optical input is significantly better than USB implementation, good as the USB may be.
2. Linear Power Supply matters most when using analog input or output. If optical in and out, the linear makes little difference.
Just what I'm told by one of the manufacturer reps.
-
I've added a linear supply and found it to make a significant difference with analog out. I'm using optical in, and the whole thing sounds quite good.
-
If one already owns a 2k DAC but wants room correction you would look to the smaller 8033 DSP unit?
-
UL: I use both USB and optical and it's really hard for me to tell the difference. (I know the optical receives higher PCM rates but my iMac/MacBook sources are both CD rips.)
Nick77: I'm guessing it's the same technology, so it depends on your need for features. In my case the DSPeaker fits my needs perfectly.
-
I've not actually used the dSpeaker but having done research, my understanding is that:
1. Optical input is significantly better than USB implementation, good as the USB may be.
2. Linear Power Supply matters most when using analog input or output. If optical in and out, the linear makes little difference.
Just what I'm told by one of the manufacturer reps.
UL,
Optical input is only significanty better if you are sending a 24/96 signal, 16/44 through the USB and optical are the same. Only caveat here is how clean/jitter free the signal is.
I'm now using a Paul Hynes SR3-12 linear power supply and everything across the board improved!
1st rule in audio is power supply, power supply, power supply...OK that's 3 rules, but without a robust and clean power supply even the best equipment will sound awful!
If one already owns a 2k DAC but wants room correction you would look to the smaller 8033 DSP unit?
The Dspeaker 8033 unit is designed only to be used on a sub woofer. I have one for my HT sub and the results are fantastic. The Dspeaker Antimode Dual Core 2.0 can be used with a ($2000.00) superior dac by way of 2 methods:
1) Pure Digital...Take the optical out or USB out from a source and place them into the Dual Core 2.0 then use the optical out to your dac. All corrections are done in the digital domain and the corrected signal will be sent to your Dac. Source Digital - Dual Core2.0 - Dac - Preamp/Integrated Amp or Amp
2) Analog... Dac Analog out to Dual Core2.0 to Preamp/Intgrated Amp or Amp. The analog signal goes through an A/D stage for corrections to be done and then a D/A for output. The A/D in the Dual Core is very transparent and many users have reported no difference in sound quality.
Chris
-
Hello, would anyone care to share where they purchased their Antimode Dual Core 2.0? The DSPeaker website only lists four retailers. Thanks!
-
Got mine from Underwood HiFi Inc.: underwoodwally@aol.com
It's an internet based business.
-
Thanks so much for the fast reply! I checked out Underwood HiFi, but their website says no returns for any reason. I assume this means even if it's dead right out of the box, so I'm still looking.
-
Give him a call.
-
Yeah Walter is great to work with. Give him a ring.
-
Thank you both for your advice. I'm afraid I called The Cable Company first, and after talking to Ethan decided to place my order.
-
Cable company is great too
-
The Dspeaker 8033 unit is designed only to be used on a sub woofer. I have one for my HT sub and the results are fantastic. The Dspeaker Antimode Dual Core 2.0 can be used with a ($2000.00) superior dac by way of 2 methods:
1) Pure Digital...Take the optical out or USB out from a source and place them into the Dual Core 2.0 then use the optical out to your dac. All corrections are done in the digital domain and the corrected signal will be sent to your Dac. Source Digital - Dual Core2.0 - Dac - Preamp/Integrated Amp or Amp
2) Analog... Dac Analog out to Dual Core2.0 to Preamp/Intgrated Amp or Amp. The analog signal goes through an A/D stage for corrections to be done and then a D/A for output. The A/D in the Dual Core is very transparent and many users have reported no difference in sound quality.
Chris
Hi Chris,
For #2 above, on a 2.2 channel setup (two speakers and two subs), would the speakers get full range signal, and the (low pass) crossover set on the subwoofers?
Thanks!
-
Both analog outputs are full range (I've used both).
From above, note that the DSPeaker Anti-Mode 2.0 Dual Core limits DSP to a 500 Hz upper limit.
-
Both analog outputs are full range (I've used both).
From above, note that the DSPeaker Anti-Mode 2.0 Dual Core limits DSP to a 500 Hz upper limit.
Thanks!
Yep, I understand the 500 Hz upper limit.
However, just wanted to clarify that using all analog connections (Preamp to Anti-Mode via XLR, then Anti-Mode to Amp analog via XLR for speakers, finally Anti-Mode RCA to two subwoofers) I would be able to room correct and EQ / DSP both speakers and subwoofers? That is up to 500 Hz of course.
Thanks!
-
Your example will work.
I happen to have my box under my work desk and the only caveat is you are unable to use the XLR input and RCA input at the same time.
I run XLR out to my amps and RCA out to my subs.
And I run my room correction all the way up to 500 Hz.
-
OK, I ordered myself one.
Plan to use it for room correction only with my existing preamp (Rotel RC-1590).
Amp is Rotel RB-1590. Dual PSA S1500 subwoofers.
I read some reviews, and the initial setup is a bit confusing. Do I just connect it as it will permanently stay (Preamp Analog XLR Out ---> Anti-Mode 2.0 Analog XLR Inputs --->Amp XLR Inputs Analog plus RCA outputs to Subwoofers) and run the test from there? A read a review that said to connect it to the preamp first.
Thanks!
-
I also use one of these. Now I only use it on my subs. It may improve the full range sound, but I just feel stupid running a nice tube amp through it. So I am a purist on my full range and a DSP user on the subs. The remote makes it really easy to switch the subs in and out or take the processing away with the touch of a button. After several years with this thing, there is no question that it improves the bass quality.
-
I also use one of these. Now I only use it on my subs. It may improve the full range sound, but I just feel stupid running a nice tube amp through it. So I am a purist on my full range and a DSP user on the subs. The remote makes it really easy to switch the subs in and out or take the processing away with the touch of a button. After several years with this thing, there is no question that it improves the bass quality.
Great to hear!
Anyone who does use the Anti-Mode Dual Core 2.0 to correct an entire 2.2 system with existing preamp? Would my connection example above apply?
-
If 'tween pre and amp - analog in on Anti-mode - then with either or both XLR and RCA out to amps. One of the RCA'a out on mine has a short so I use XLR out to subs using separate XLR to RCA converter.
-
If 'tween pre and amp - analog in on Anti-mode - then with either or both XLR and RCA out to amps. One of the RCA'a out on mine has a short so I use XLR out to subs using separate XLR to RCA converter.
Thanks! I plan to use the XRL outputs out from Anti-Mode to the Amp, then RCA outs to the two subs.
The question is: do I set it up this way before I ran the calibration / test tones?
Here is the diagram i'm referring to:
Using Anti-Mode 2.0 Dual Core to correct a 2.1 or 2.2 system
You can use the Measurement tool within Anti-Mode 2.0DC to adjust the optimal level, cross-over and phase of the subwoofer(s). Note: in this setup the cross-over of the subwoofer must be used instead of ones in Anti-Mode 2.0 Dual Core.
Source(s) -> Anti-Mode 2.0DC inputs (USB,S/PDIF,Analog), Anti-Mode 2.0DC analog XLR out -> power amplifiers/active speakers, Anti-Mode 2.0DC analog RCA out -> active subwoofer(s)
(http://www.audiocircle.com/image.php?id=167467)
-
Yes, use the calibration mode with everything hooked up as you want to hear it.
-
Dumb question, s/pdif is optical, correct? I do not see a coax type (RCA) connector on the back.
TIA,
Jake
Nevermind, found my answer on the DSPeaker website.
-
I don't remember and unit is so tucked into shelf that I don't want to move it. If that is all you see, then use it.
-
The DSpeaker is really easy to use. I have never used any of the higher level "custom" set-ups, but plug everything up and then run the set up.
It will run your test tones and auto calibrate.
When I bought mine, it was recommended to use a linear power supply instead of the standard wall wart.
I bought an Alstron unit for about $125.
-
When I bought mine, it was recommended to use a linear power supply instead of the standard wall wart.
I bought an Alstron unit for about $125.
Linear power supply is recommended even if used as simply a room correction tool (NOT using its DAC, but using a preamp / DAC instead)?
In other words, is the LPS recommended if put between a preamp and an amp?
-
I was told that it will work with the standard wall wart, but to make it perform its best, use the linear power supply.
Underwood Hi Fi offers an alternate power solution as well which leads me to believe there may be better performance achieved above the wall wart.
Mine is only used as a DSP - no source components run thru it.
-
Got mine yesterday. First impressions are positive. I like what it produces, although it will take while to get used to. There are certain areas of the sound that are different than what I am used to without correction.
Did the advanced correction extended to 500 HZ .
One thing I can't seem to figure out is which volume control to use, AM DC 2.0 or at my Preamp?
I have all in Analog:
Preamp (Rotel RC-1590) to Anti-Mode via XLR. Then XLR out on AM to Amp (Rotel RB-1590), and RCA out on AM to subwoofers (dual PSA S1500s)
From the connection diagram on the website, it looks like speakers are getting full signal, and crossovers adjusted on the subs.
A couple of other questions:
1 - Where to I buy a USB A to Mini B cable? I would like to try the anti-mode as DAC / Preamp, so that I can also test its crossover capabilities on the speakers AND subs.
2 - Can you recommend a 12 volt linear power supply? I love LPS-1 from Uptone (I have three of them in my systems), but they don't do 12 volts.
Thanks!
-
I bought a $329 power supply from Channel Island Audio, but in a fit of simplifying sold it (improvements were very subtle in my system). Reportedly the DSPeaker switching power supply is quite good. Note that Benchmark purposely avoids using linear power supplies. Note also that the DSPeaker uses a 2.1 mm power supply connector and many add on power supplies use 2.5 mm connectors, so an adapter may be needed.
I bought a super cheap USB B to USB mini B adapter from Monoprice (my go to for cheap/quality, what they call premium, cabling solutions) to go with my 10ft long USB cable, but the DSPeaker should have come with a short/cheap USB A to USB mini B cable.
I use my DSPeaker Anti-Mode 2.0 Dual Core for USB and optical inputs for up to 250 Hz DSP, DAC, and preamp.
-
I bought a $329 power supply from Channel Island Audio, but in a fit of simplifying sold it (improvements were very subtle in my system). Reportedly the DSPeaker switching power supply is quite good. Note that Benchmark purposely avoids using linear power supplies. Note also that the DSPeaker uses a 2.1 mm power supply connector and many add on power supplies use 2.5 mm connectors, so an adapter may be needed.
I bought a super cheap USB B to USB mini B adapter from Monoprice (my go to for cheap/quality, what they call premium, cabling solutions) to go with my 10ft long USB cable, but the DSPeaker should have come with a short/cheap USB A to USB mini B cable.
I use my DSPeaker Anti-Mode 2.0 Dual Core for USB and optical inputs for up to 250 Hz DSP, DAC, and preamp.
Can you clarify the last paragraph please? Are you using the Anti-Mode 2.0 as a DAC/Preamp?
-
Can you clarify the last paragraph please? Are you using the Anti-Mode 2.0 as a DAC/Preamp?
Yes, using all it's features except for analog input and very pleased. More detailed and less digital sounding than my $500 Emotiva DC-1. On par with $2200 Schiit Freya/Gungnir MB (with matched NOS tubes) in a smaller package that I can leave powered up. By "on par" the Schiit pair made great recordings sound noticeably better (the goal of audiophiles) but punished poor recordings (of music I still like). Plus of course it adds DSP features. Note that I use the DSP function primarily as a baffle step compensation for the my single driver speakers which affords a direct connection from mono-blocks to the drivers.
-
Yes, using all it's features except for analog input.
Thanks! No preamp / DAC other than the Anti-Mode?
For those using it with an existing preamp, do you volume control on Anti_mode or preamp?
-
Thanks! No preamp / DAC other than the Anti-Mode?
For those using it with an existing preamp, do you volume control on Anti_mode or preamp?
Nope, I run a very simple system (as simple as MacBook > DSPeaker > active monitors). But while trying out the Schiit Freya/Gungnir MB did connect in every conceivable configuration I could practically imagine.
Which volume control you use is up to you in your system. Many audiophiles have preferences for one type/brand of volume control over another. Some preamps sound best at mid-volume settings. Try it for yourself. Of course convenience is another factor. The DSPeaker has a cheap remote that doesn't work the best, which is a gripe mine, especially as the only means of control. I understand universal remotes can replace it.
-
OK, crossovers part is very confusing.
http://www.dspeaker.com/en/technology/anti-mode-technology/anti-mode-20-dual-core-connection-examples.shtml
Can someone confirm/ deny that the crossovers on the Anti-Mode can be used in a 2.2 system (2 speakers and 2 subs) with no preamp? I removed my preamp, and now the Anti-Mode is doing the preamp and DAC duties, feeding it with USB cable from my streamer.
Thanks!
-
From their site regarding this configuration: "in this setup the cross-over of the subwoofer must be used instead of ones in Anti-Mode 2.0 Dual Core." This does not say "the ones" but means there are none for this configuration. Should not be an issue if using full range speakers.
-
From their site regarding this configuration: "in this setup the cross-over of the subwoofer must be used instead of ones in Anti-Mode 2.0 Dual Core." This does not say "the ones" but means there are none for this configuration. Should not be an issue if using full range speakers.
Thanks for chiming in.
I realize that, but I thought this was the case only when using a separate preamp.
Logically one would think that when using the AM DC2.0 as a preamp, some form of active crossover on AM would exist for speakers vs. subs. After all, there are four analog outputs on it, two for speakers (via amp) and two for subwoofers. Also, there is a full Crossover Menu in the AM with all kind of filters. Is it there just for fun? I think I am missing something. Or maybe active crossover on AM (speakers vs. subwoofer) is simply not possible, external preamp or not. Not a big deal, but nice feature to have. I would love to get any definitive answer on this.
-
DSP functions from the DSPeaker only affects frequencies below 500 Hz, but the entire signal (with or without DSP added - your choice) is sent to both pair of analog outputs. Note that your mains (main speakers) will no doubt have output below 200 Hz (probably much less), so both the mains and the subs would be effected by the DSPing.
When setting up mains with subwoofers, I'd start without any DSP and proceed to use the subwoofer's low-pass (upper frequency limit) crossover (or preamp with crossover filters for the subs) to obtain the best blending, then run the combination through the DSPeaker's DSP miking setup to achieve the combined effect (final solution).
-
Got mine yesterday. First impressions are positive. I like what it produces, although it will take while to get used to. There are certain areas of the sound that are different than what I am used to without correction.
Did the advanced correction extended to 500 HZ .
One thing I can't seem to figure out is which volume control to use, AM DC 2.0 or at my Preamp?
I have all in Analog:
Preamp (Rotel RC-1590) to Anti-Mode via XLR. Then XLR out on AM to Amp (Rotel RB-1590), and RCA out on AM to subwoofers (dual PSA S1500s)
From the connection diagram on the website, it looks like speakers are getting full signal, and crossovers adjusted on the subs.
A couple of other questions:
1 - Where to I buy a USB A to Mini B cable? I would like to try the anti-mode as DAC / Preamp, so that I can also test its crossover capabilities on the speakers AND subs.
2 - Can you recommend a 12 volt linear power supply? I love LPS-1 from Uptone (I have three of them in my systems), but they don't do 12 volts.
Thanks!
https://www.dxengineering.com/parts/asr-sl-11a-xtr
-
I have it up and running.
First impressions are very positive on this. Just using the Autocorrect but in advanced mode to 500 HZ . The result after the correction is.... let's just say... different. The "boom" in the mid to upper bass is removed, which allows more detail to be heard on that region. It also reduces the "3D " aspect of music, for lack of better term. In other words, some of the "echo" that I guess is produced by the room, not the speakers is gone / reduced. At first I was worried on this, as I thought that it ruined my overall resolution, but after many hours I realized this is a good thing. The small remote lets you turn the correction on and off with a press of the button for a/b purposes. Very cool. Still experimenting, especially with my dual subs crossovers, gain, delay and room size settings, I must have run the test 12 times. I will keep experimenting. Next step is to get a linear 12 volt DC power supply. Majority of reviews recommend this. Let me know if you have any questions. Overall, I had a positive weekend with my new toy. It is NOT going back for sure.
-
Glad to hear you are happy w/ your purchase, but... :o
I have heard the next gen is the "bee's knees" but comes w/ a much heftier price tag - somewhere in the $3k range.
My memory is shit but I thought it would be a Q4 release this year.
I suspect some vendors will offer a trade in for the upgrade, but I am hesitant to be the 1st man on the block to work out any firmware issues.
Enjoy the new toy - you will be exceptionally surprised after a few weeks when your hears have become accustomed to the sound. Turning the correction on and off will be like night and day.
-
And here is a pic of the power supply I am using FWIW...
(http://www.audiocircle.com/image.php?id=167719)
-
Glad to hear you are happy w/ your purchase, but... :o
I have heard the next gen is the "bee's knees" but comes w/ a much heftier price tag - somewhere in the $3k range.
My memory is shit but I thought it would be a Q4 release this year.
I suspect some vendors will offer a trade in for the upgrade, but I am hesitant to be the 1st man on the block to work out any firmware issues.
Enjoy the new toy - you will be exceptionally surprised after a few weeks when your hears have become accustomed to the sound. Turning the correction on and off will be like night and day.
Thanks! I am aware of the X4 coming soon, but was not willing to wait. They keep saying it is "coming soon" since late 2015.
One thing that I am not sure yet is which one to use in terms of adjusting the Volume: lower the volume on AM to min, and work with my preamp (Rotel RC-1590) Volume and vice versa.
In terms of power supply, I am looking at a Teddy Pardo 12volt / 3a. Used for about $150
-
I work from my home office so I just went and checked and I leave the volume set to 0 on the Dspreaker and then allow my preamp to take control.
-
I work from my home office so I just went and checked and I leave the volume set to 0 on the Dspreaker and then allow my preamp to take control.
Thanks! You most likely know that zero setting on Anti-Mode is half way through (they start at negative, go to zero, then positive values).
That's where I have mine right now.
-
From my "assumption" which I hate to assume, I would think you would be adding or removing gain from zero.
I use a pair of 300B mesh plates in my pre so I prefer as much sound across them as possible.
Pretty sure I went thru a lot of this w/ Walter @ Underwood when I bought my unit.
Like I said, memory gets hazy with age and kids...
-
From my "assumption" which I hate to assume, I would think you would be adding or removing gain from zero.
You might be 100% right on this! I did not think about add / remove gain from Zero settings. Thank you!
-
Do you guys know whether a double A -> D -> A conversion is going on with my setup and Anti-Mode?
I have a Preamp with DAC built in (Rotel RC-1590) before the Anti-Mode. So Rotel RC-1590 Preamp XLR out to Anti-Mode XLR Inputs. Then Anti-Mode XLR out to Amp XLR inputs, and Anti-Mode RCA out to dual subwoofers.
If that's the case, which DAC is being used? The one in Rotel RC-1590 or on the Anti-Mode? Or both?
This is confusing...
-
No.
You have to feed the device a digital signal for any D > A conversion to take place.
By your description, you are not running any digital signal thru the DSpeaker, only analog.
-
No.
You have to feed the device a digital signal for any D > A conversion to take place.
By your description, you are not running any digital signal thru the DSpeaker, only analog.
I really hope so. But I am not convinced.
Logic behind my doubts: if I feed a DSP with an analog signal it has to convert that analog signal back to digital in order to do it's DSP magic, and then must convert that digital signal back to analog. No? Which means, if I am using a DAC before my Anti-Mode (which I am) then that is whats happening?
Basically:
Source -> DAC -> ADC -> DSP -> DAC -> Speakers
True?
I emailed DSPeaker directly with this, but they are usually slow in responding, and often don't respond at all, depending on the complexity of the the question. @JLM
-
DSP's work in the digital space. So if you are using the DSP, then it is Analog->Digital->analog.
That being said, it is only a problem if there is sound degradation with this step. Try feeding the Anti-mode a digital signal to determine if the extra conversion makes any difference to the sound.
-
DSP's work in the digital space. So if you are using the DSP, then it is Analog->Digital->analog.
That being said, it is only a problem if there is sound degradation with this step. Try feeding the Anti-mode a digital signal to determine if the extra conversion makes any difference to the sound.
Thanks for chiming in. It sounds like my suspicions were right - there is a double conversion happening with my setup.
If I do what you suggested (feeding the Anti-Mode), wouldn't the DAC "duties" be done in full by the Anti-Mode, thus completely eliminating the need for my pre-amp with built in DAC?
-
Digital source to digital input on DualCore and digital output of the DualCore to a digital input on your preamp = no additional conversions.
-
Thanks for chiming in. It sounds like my suspicions were right - there is a double conversion happening with my setup.
If I do what you suggested (feeding the Anti-Mode), wouldn't the DAC "duties" be done in full by the Anti-Mode, thus completely eliminating the need for my pre-amp with built in DAC?
It might, but it also might not. Try it and see. From reading these and other forums, many of the ADC/DAC are fairly clean sounding and maybe a bit sterile sound wise. So sending in a direct digital signal may not sound like you want it to vs sending in a good sounding Analog signal and doing the ADC/DAC conversion on a good signal. Garbage in/Garbage Out.
-
It might, but it also might not. Try it and see. From reading these and other forums, many of the ADC/DAC are fairly clean sounding and maybe a bit sterile sound wise. So sending in a direct digital signal may not sound like you want it to vs sending in a good sounding Analog signal and doing the ADC/DAC conversion on a good signal.
I cannot accept that last point. Where did that "analog" signal come from? If from a turntable, then an A/D for the DualCore is necessary (as you know) but otherwise (meaning a digital source of any sort), there is no reason to insert an unnecessary A/D before the DualCore; just use a digital input.
On the other end, you can use the D/A from the DualCore to feed analog preamp/amp or, if you have a really nice DAC (stand-alone or built-in), you can feed the digital output from the DualCore to it. I would go with the latter, if possible. There's no need to use the A/D/A in the DualCore.
Minimize the conversions and do them in the best components you have.
-
.... or, if you have a really nice DAC (stand-alone or built-in), you can feed the digital output from the DualCore to it.
All great points - I am in the same page with you.
On the quoted phrase above though, if the nice DAC is also the streamer (in my case, and I have a Lumin T1 coming), I don't see how I can have that implementing. Thoughts?
Here is the Lumin T1 page:
http://www.luminmusic.com/lumin-t1.html
Using it with Roon.
-
All great points - I am in the same page with you.
On the quoted phrase above though, if the nice DAC is also the streamer (in my case, and I have a Lumin T1 coming), I don't see how I can have that implementing. Thoughts?
Here is the Lumin T1 page:
http://www.luminmusic.com/lumin-t1.html
Using it with Roon.
The Lumin T1 is a streamer and DAC. I would guess that it has a better DAC implementation than the Antimode, but I don't know. If your source and DAC are separate you could run digital through the Antimode and use a DAC on the Toslink out from the antimode. You could do this in your case, but the Lumin doesn't have a toslink out, only a BNC coax out. You would need a converter to go to toslink and you would need another DAC or just use the Antimode DAC.
-
The Lumin T1 is a streamer and DAC. I would guess that it has a better DAC implementation than the Antimode, but I don't know. If your source and DAC are separate you could run digital through the Antimode and use a DAC on the Toslink out from the antimode. You could do this in your case, but the Lumin doesn't have a toslink out, only a BNC coax out. You would need a converter to go to toslink and you would need another DAC or just use the Antimode DAC.
Yeah! I don't see how I can do this in my case with Lumin T1 and Anti-Mode.
So my choices are:
1 - Use it with Anti-Mode (XLR out on T1 to XLR in on AM), thus doing the double conversion on both
2 - Ditch the Anti-Mode completely.
I guess I will have to wait until the T1 arrives and try both options.
Thanks!
-
Since you are using Roon, you could use the DSP in Roon (not sure if it is on par with the AM DSP or not) prior to sending it to the Luxman. You may want to try that.
-
Since you are using Roon, you could use the DSP in Roon (not sure if it is on par with the AM DSP or not) prior to sending it to the Luxman. You may want to try that.
You mean my new "Lumin T1"?
The primary reason I bought the Lumin T1 is its capability of being a Roon Ready / Endpoint with a built in DAC, so that the USB connection is completely eliminated. So rather than having a Roon Ready Endpoint (my current SMS-200 from SOtM) "feeding" a preamp via USB, using the Lumin T1 to do both duties.
DSP in Roon is NOT capable of room correction (yet). I know they are working on it - no device - just everything in the existing software / digital domain.
-
Sorry, I meant Lumin. :oops:
I don't use Roon, so I wasn't sure how advanced its DSP implementation was.
-
My comments were incorrect regarding the analog / digital connection.
However, the Dspeaker only runs up to 500 Hz, so I am not sure you are going to hear much audible affect when using.
I use a component DAC and I use the DSpeaker only for room correction.
As you have noted, you can turn the DSpeaker on and off and hear its benefits.
-
Since you are using Roon, you could use the DSP in Roon (not sure if it is on par with the AM DSP or not) prior to sending it to the Luxman. You may want to try that.
I have heard the DSP in Roon first hand at a friends house and it is the real deal. He was able to increase the bass output without any degradation of sound IMO. And we switched between having it on and off and it made a big difference in the presentation. His system is extremely transparent with all of the nuances of a very high end system.
Of course anytime you use room correction it only works in a very small area of the room. His room is small so IMO that is a great application.
Greg
-
I have heard the DSP in Roon first hand at a friends house and it is the real deal. He was able to increase the bass output without any degradation of sound IMO. And we switched between having it on and off and it made a big difference in the presentation. His system is extremely transparent with all of the nuances of a very high end system.
Of course anytime you use room correction it only works in a very small area of the room. His room is small so IMO that is a great application.
Greg
Roon does not do Room Correction (yet). DSP is one thing, and room correction is another.
-
The Roon DSP module will apply a room correction (impulse response) filter to the music stream via its convolution engine. It just doesn't have the ability to automatically generate the filter in the first place, but you can do that in Room EQ Wizard, Dirac, etc.. The DSPeaker unit can handle both parts of the process.
(I use Roon - though usually with HQPlayer for filter convolution and upsampling rather than the Roon DSP engine - but I have no experience with DSPeaker, so I really can't comment on the quality of one vs. the other.)
-
Yes, ROON will do roomEQ or any other filter that you want. It still cannot generate the filters but you can create almost any kind you want. It is certainly as efficient as using a DSPeaker filter as the Dual-Core is but without the insertion of additional hardware.
FWIW, you can do similar in JRiver.
-
Yes, ROON will do roomEQ or any other filter that you want. It still cannot generate the filters but you can create almost any kind you want. It is certainly as efficient as using a DSPeaker filter as the Dual-Core is but without the insertion of additional hardware.
FWIW, you can do similar in JRiver.
So with Roon, you would measure the room frequency response with a microphone, then apply the appropriate DSP correction to fix whatever you are not happy with?
-
Excuse my ignorance but from what I can see on their site, the Anti-Mode is updatable only via PC, not Mac, right? I presume you can download before/after data to a Mac via the USB connection, so what software are Mac users employing to view frequency graphs?
-
Picking up this thread, instead of adding sound panels to my living room, which I’d prefer not to do, the availability of an Anti Mode at a decent price got me thinking about the alternative of digital processing. The core of my audio system is a modified Oppo 203 to a Directstream dac (coax, I2S) to a pair of ATC SCM 19A active speakers (TV in the middle). I also have a pair of active JL Audio e-110 active subs waiting to be set up, making it 2.2. The processor would then go between dac and subs and treat the two speakers per side in combination as a stereo system. ICs are be MG Audio Design AG2S2 RCAs and XLRs, with adapters at the subs’ outputs for the ATCs, which take only XLR.
A couple of questions: what problems or limitations might I face using the Anti-Mode in this set up? Would the Anti-Mode dac's essentially take over from the Directstream, in effect losing some or all of the latter's SQ? Thanks,
-
The Anti-mode has the option to take in analog signals. Just set it to analog, feed the DAC to it and use the anti-mode like a preamp. I use mine to just feed the 2 subs and this makes volume matching
(from my listening position) easy when I use different amps.
-
What are the implications of using the AM as a preamp? Would system volume control pass from the dac’s remote to the AM?