Review: Concert Fidelity DAC-040 DA converter


Category: Digital

Starting in 2005 I worked myself up the chain of the very fine DACS built by Accustic Arts of Germany, finally ending up with their Reference Tube Hybrid. I have auditioned over six very highly regarded DACS in the last couple of years and found them to be quite good, but none of them exceeded the performance of the AA Reference Tube Hybrid in my system. I do not use high resolution material, only Redbood CDs, so these auditions were only based on this format because my large collection of music is composed totally of this material. Well, I know nothing is the "BEST" in high end audio, there are many fine pieces of gear when you get to a certain level of excellence. However, I thought that maybe the evolution of DACS that play the standard format had got to the point that it could not get really that much better. Each DAC might offer different slight flavors but not a qualitative shift to a much higher level of performance. It has turned out that I was very wrong regarding this assumption after auditioning what has become my new reference, the Concert Fidelity DAC-040.

The designer of the CF DAC-040, Mr. Masa Tsuda believes in very short and clean circuits in all of his designs. The analog section of this DAC is very similar to what he uses in his highly regarded reference LS-080 linestage. They both use 12AU7's and a 6CA4/EZ81 full-wave rectifier tube. It took over two years of on-going listening tests for Mr. Tsuda to find the NOS DAC chips to use in his DAC, there is no over or up sampling and any type of digital filters to be found any were in this piece, that delivered the sonics he was looking for. Which DAC chips he finally decided on are confidential and not disclosed. All the Concert Fidelity and Silicon Arts, same company, pieces are beautifully built to an exemplatory level including the DAC-040.

Why was I taken so aback by the sonic performance of the CF DAC-040, here's the reasons:

1) By far the most natural timbres and harmonic colors I have ever heard coming from a digital front end.

2) The microdynamics and prat of this DAC are amazing, yet it still allows the listener to relax into the music without giving up the punch and kick of the music.

3) What I refer to as image density or a 3D quality, what most would just call palpability, of each player with air around them on a layered soundstage was the best I have ever had in my system.

4) The CF DAC-040 creates a very open and deep soundstage with great layering in a natural way that allows you to have the illusion that your in that acoustic space.

Believe me, the AA Reference Tube Hybrid DAC is no slouch in these sonic qualities, yet, it was no were close to having these special attributes that the CF DAC-040 was providing in my system. To use very subjective terms this DAC has the most musicality/naturalness that I have experienced that just draws you into the music. Dare I say that a lot of listeners could be fooled into thinking that they were hearing an analog front end, instead of a digital source, I think so.

I end all my reviews by sharing that there is no "BEST" piece of any kind of gear, but many terrific ones. Personal taste and system synergy always comes into play. If your looking for one of the best Redbook DACS around today I highly recommend you audition Mr.Tsuda's "baby", you will be in for a sonic treat.

Associated gear
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teajay
Paul,

Hope this good enough, the DAC has the same analog circuit design as the CF-080 linestage. If you go the website Positive Feedback Online-Issue 41 has a review by Mike Wechsberg on the CF-080 linestage with detailed pictures of its internal circuit layout. I know it's not the DAC, but close enough that it will give information on how short the total circuit really is.
Thanks Teajay, yes it helps enough, i'll read the review in full tomorrow when i have more time but it sounds like the pre is also very musical..

Hope you are enjoying yours..

Best regards,
Paul.
Teajay, Where is the best place to buy the extra tubes that you recommend for the CF 040 dac.
Hi Husk01,

Congrets on your new CF DAC-040, I'm sure you will be delighted with how it will sound in your system.

The tubes that it is shipped with at best are nothing to write home about and do not let this DAC really sing as it can with the right NOS tubes.

For the 6CA4/EZ81 rectifier tube I recommend any NOS Mullard, RCA, Volvo, or Mazda, and yes this tube makes a great difference in the performance of the DAC.

For the pair of 12AU7's my favorite Choice is either a NOS 5814 or 6189 Sylvania Gold Brand Gold pin or a Mazda 5814 chrome plate. I have over 25 types of 12AU7's and these sound the best in the DAC in my system.

These tubes came from Brent Jesse Audio who is a great guy and his tubes are first rate. Have Fun!