M Audio DAC

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Rob Babcock

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M Audio DAC
« on: 26 Feb 2004, 01:19 am »
I'd never heard of this until the last panny thread- just what is this DAC?  Is it the same M-Audio that makes the computer stuff?  Does anyone have a link to the thing?

Lastly, Wayne, you mention modding it, but there's no info on your website about it (that I can find).  Is it a standard product or a one-of?  It must be something special if everyone present though it bested the D/IO! :o

Thanks!

Tyson

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M Audio DAC
« Reply #1 on: 26 Feb 2004, 01:23 am »
I did not think it beat the DIO.  But then again I didn't listen to it either, I was in the other room drinking scotch and ordering lunch :-)  But everyone else said it beat the DIO.

Wayne1

M Audio DAC
« Reply #2 on: 26 Feb 2004, 02:10 am »
I was contacted in December by a gentleman from Chile who wanted me to build a power supply for him to power the SuperDAC.

http://m-audio.rjmg.com/index.cfm?pid=3279

After a fair amount of back and forth communication I ended up agreeing to mod the unit for him AND build him a power supply.

It uses the same DAC chip as the DI/O but the power supply and output circuitry is a bit different and a lot easier to work on and mod.

The unit was purchased from Digital Audio Works for $210.00 (including shipping) http://digitalaudioworks.com/mimsd0.html

Here is a LINK to a thread on a British forum talking about the SuperDAC and some mods done to it.

Here is another LINK to a thread about it from DIYAudio.com

I ended up replacing most of the electrolytic capacitors and the rectifier diodes. I replaced the op-amps with Audiocom AD-825 modules. I did some work on the digital input circuit and replaced the 1/4" jacks with Cardas RCAs.





I thought it had a very analog sound to it. The DI/O, in comparison sounded more up front and in-your face. If there is interest, I may offer mods for this, not like I'm busy enough now  :?

nickspicks

superdac
« Reply #3 on: 11 Mar 2004, 02:49 pm »
I've heard the superDAC...its pretty decent sounding for the money.  Definatly sounds better than a stock DIO, IMO.
I thought it very similar sounding to the Lucid 2496 DAC.

maxlorenz

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M-Audio superDAC
« Reply #4 on: 7 Apr 2004, 04:11 am »
Hi everybody:
I am the chilean gentleman about wich Wayne talked. The real gentleman is him, though.    :wink:
Everything happened as he stated. Only, I didn't confess I planed beforehand to convince him doing the mods   :wink:

The superDAC (aka, "the unit") arrived only 3 days ago, after a long trip by boat, to our shores. So far I am VERY pleased with it. It is sounding better and better. Please forgive me that I use common "audiophile" terms to refer to its sound: I don't know any other means to do it.
It seams that somewhere Wayne commented a "panel audition" promised to this insistent costumer, but I couldn't find it.

First, my humble system:  cheap DVD player as transport  -->DH Labs D75 digital cable-->Monarchy Audio DIP upsampler--> Signal Cable ($35) balanced digital cable--> superDAC-->NAD T761 receiver (acting as stereo preamp)-->Monarchy Audio SE100Deluxe Monos-->Bybeed cheap Jamo speaker cables--> Tannoy Definition 500 speakers.  The philosophy behind this is trying to find the best price/performance items within a budget. I listen almost only to classical music.

The first thing I found is a very open sound (compared to NAD's internal DAC), with lots of detail and armonical richness. Highs are extended and sweeeet, something shared with Monarchy's amps and Tannoy's Dual concentrics. Today I listened to Mozart's complete string quintets, with Grumiaux trio et alter (Philips; $15). These are "ADD" CDs that are actually sweet sounding. The superDAC revealed lost armonics and resonances of each instrument  and enhanced music's "breath", wich is very important. First violin lost some prominence because all partner instruments were better delineated and aquired deserved weight. It was a delicious experience.
Midrange is also detailed and colorful. I like strings to have 50/50 string and wood sound, wich this unit does. Horns and tubas from Berlioz' "symphonie fantastique"  (Bernstein; Sony; 24bit reissue) almost deranged my hair-cut! Double basses had proper weight and were rich sounding: my system hasn't the lowest bass possible but it is a very thight, agile, textured and detailed one (of course I would love to have better sub-bass  :cry: )
My amp-speaker tandem is quite good in the spatial positioning department. With superDAC, it excels... Soundstage is wider than previously and players are more separated in space. In Beethoven's 9nth Symphony (Solti; Decca; not my favorite one but the best recorded that I own) 4th mouvement, soloist singers are easily located in front of the chorus, on a wide stage. In chorus entrance (after tenor part), the famous "freunde götter...etc" (you know what I mean)  voices seam to extend beyond my living room boundaries (I might be exagerating a little  :wink: ). They are powerful but soft sounding voices, with not a hint of congestion even at high volumes (Class A amps). That is something that I didn't mention before: it is relaxing that when loud passages come you only here more music not more distortion. Different drums are distintly located and with the right "twack". Dynamics and agility improuved a lot.
Bass is improuving day by day. I am patient.
Maybe by chance I found a good partnership in Maudio/Monarchy/Tannoy trio.         :D
I have never listened to HiEnd analog, and never heard (nor probably never will) the ART DI/O: it's up to Wayne to answer about such comparisons. Forced by me, in my long wait, he told that the superDAC didn't dissapoint in front of his (high cost) analog front end. I hope he was not playing around with your humble narrator's hart   :cry:
The only fair comparison I can make is with Creek's top-of-the-line CD player and amp (forgot version) at Tannoy's dealer: it's a very dynamic combo, with great PRAT, but can't compete with my set-up in "engaging-ness",  musical voluptuosity and the "see into" factor.

Taking into account that this unit supports balanced ins and outs (appart conventional ones) and that it is easily tweakable, I don't see why anybody would pass this oportunity to get one and mod it.   :wink:
The bad news for Wayne is that he will have to build balanced digital cables because (in my first comparisons) I found the cheap Signal Cable balanced better sounding that my beloved DH Labs D75 (with Cardas connectors). I think this is a format difference, though.  

I hope the reader don't get as tired reading this as I got writing it!   :lol:
I am in such an "audiophile isolation" that every chance I have I over-react!

Everything can't be good: I will find drawbacks, I promise!       :P    (Virgo, you know)

Mauricio.

(I hope I can post this correctly      :oops: )

Blue_Max

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    • http://groups.yahoo.com/group/M-Audio_SuperDAC_2496
M Audio DAC
« Reply #5 on: 1 Dec 2004, 11:24 pm »
Here is PSU for Super DAC using torroidal tarnnies.



For more details and pics click the link below.

If Bolder do mods for Super DAC please post details.

maxlorenz

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M Audio DAC
« Reply #6 on: 10 May 2005, 12:36 am »
I joined the yahoo-group and learnt a lot! They got the schematics for this DAC. I continued the mods started by Wayne and now it deserves de "superDAC" name!

First of all, this DAC has balanced I/O wich is the best way to use it!
Anyway if you want to use the unbalanced I/O you sould know that:
The DAC has 6 output opamps: 2 for each balanced out + 1 for each unbalanced (quite obvious); the unbalanced opamps being "summing opamps" for the balanced, so in order to take full advantage of the mods you should swap the balanced OA too! I upgraded to OPA627AP and they are marvelous sounding (though costly). When I'm up to the task I will try ClassA bias of OPA.

Next, if you have balanced transport or any DIP you can connect directly the balanced signal from the digital trasformer to the CS8414 receiver and get rid of two IC's: better transparency. When you look at the diagrams this is easy to imagine. You loose S/Pdif and optical this way.

I swaped some resistors in th esignal path to Riken-Ohm too: warmth and dynamics; very good midrange, as Wayne said. A little "dirthy" I might say.

I did a quick try with balanced outs and the soundstaging is phenomenal! I doubt that ART DI/O could compare to it.

Regards
Mauricio

Wayne1

M Audio DAC
« Reply #7 on: 10 May 2005, 12:59 pm »
The SuperDac is a very good sounding DAC. I have suggested it to a few folks and they are happy with it in stock form.

If someone would be wanting one modded, I would be very happy to do it for them.