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
Hey Paul,

I forgot to also mention how important it is to change out the stock rectifier tube that the DAC is shipped with and replace it with a NOS tube. The rectifier tube type is a 6CA4/EZ81. I have tried Genelex, RCA, Mullard, Mazda and they all make this DAC sing quite well. This rectifier tube is just as important as the 12AU7 output tubes regarding how to get the most superlative level of sonic performance from the CF DAC-040.
Hi Paul,

Yes, I have tried many NOS 12AU7's in both my CF preamp and DAC. However, my favorite tubes in both pieces are either NOS 5814 or 5963 Sylvania Gold Brand Gold Pin tubes. Just beautiful sounding, better then my long plate Mullards,Amperexs/Mazdas/Telefunkens that are wonderful tubes, but I like the sonics of these Sylvania's more.
Hi Paul,

I know very well how Wadia S7i sounds; it's a wonderful CDP (for me the best made by Wadia Digital) but IMO, without any doubt, the CF DAC-040 together with a good CDT (like MBL or others at the same level or more) is a better sounding solution.

In few words: the sound is more analog, less colored, the instruments body is focused like 7i but smoother and with a better live presentation.

Regards,
Teajay,
Many thanks for the response.

My only option here is to bite the bullet, as there is no demo option yet. I have been in touch with Mr Tsuda, and respect his professionalism, he seems good to deal with.

Out of interest, have you tried alternative tubes?

Regards,
Paul.
Hi Ps68,

I used to use the MBL 1531 transport, until I went to its bigger brother the reference 1621a, and the CF DAC-040 performed beautifully with either transport.

I have heard all the other DACS that you mention and on redbook there is still a wide margin between the CF DAC-040 and the other pieces.

Hope you get one to audition I think you would be amazed at it's sonics.
I know this is a long shot, but any thoughts on how this would fare with my MBL 1531 as the transport, against the PBD5 or a Wadia S7i, or even 1531 + ARC Dac8?

Currently there is no uk importer, though Mr Tsuda is working on this, so a comparison is not possible. I don't think there are any CF 040 in the uk at all.

Any views would be very highly appreciated as 2012 will see my source get an upgrade.

Best Regards and seasons greetings to all..
Ps
Badwisdom,

I've heard the DAC with a MAC+Amarra at the dealer and you won't be disappointed.
Branislav I am using a Modright modded Oppo 95 cd player with tube outputs. This unit replaced my modright Sony 5400ES unit.
Hey tea jay,

well I've been in contact with CF over email and I'm close to trying this thing out.

Im worried because if i want to plug several sources, i.e. a CD transport and a Computer based transport (with a USB/SPIDF Audiophilleo adaptor), then i can't. Ill have to plug and unplug.

A small price to pay i guess for a superior sound, but still it has to be taken into account.

Im also worried with the enjoythemusic review which states that unless you're using state of the art transport, then the CF DAC 040 will sound ordinary.

Ill be mostly using a computer source, MAC base with Audiophilleo adaptor, so i have no idea if this will work out at all.

Maybe this is the wrong equipment and i should be looking to a USB DAC, but I'm a sucker for old ladder DAC tech.

Cheers
Xavier
Hi Badwisdom,

I believe that Mr. Tsuda's philosophy of having the shortest/cleanest circuits possible lead to his decision of only having one input.

I would be curious about what your worries are because of this DAC only having one input. I would love to hear from you if you have a chance to audition and what you thought.

I just got reviewing another DAC for my website hometheaterreview.com that is quite good, but no were close to the musical beauty of the CF-DAC-040. As you know this DAC only does redbook, yet the performance equals alot of high rez formats that I have compared it to.

So, let us know what you think if you do audition it.
Im thinking of getting this DAC but just 1 SPDIF input really is a worry for me. Why no AES ? Why not 2 x SPDIF ?
I have owned the Playback and do not see what all the hoopla is about. The playback was thin in the lower mids and on the dry side. I could not wait to get rid of it.
Dear Branislav,

I’ve auditioned the MPD-5 at my house in my system and it is an amazing DAC in High Rez (among my favorite) but compared to the CF-040 I confirm Teajay’s evaluations.

Best regards,
Yes Branislav,

The Playback Design was fully broken in. This audition was done at my friend's house who is a retailer dealer for both companies. I'm only interested in redbook CD's, if I was into high rez I would consider the Playback Design DAC and still keep the CF DAC-040 because of its performance on the standard format. If you think the Playback Design DAC is very 3D in it's presentation you would be amazed how much more the CF DAC-040 offers in this area.
I hope the Playback Design was fully broken in and warmed up, because it needs it. I actually think one of its strength is 3 dimensionality, so if Concert Fidelity beats it, that would be really something.
Hi Branislav,

I can easily answer your question. I and a friend of mine, in the exact same system, compared the Playback Design to the Concert Fidelity on redbook and it was quite clear to both of us that the Concert Fidelity was sonicly on a much higher musical level then the Playback Design piece.

The Playback Design sounded kinda dry and two dimensional compared to the CF DAC-040. When it came to timbres and harmonics the gap was even larger. This is not an attempt to slam the Playback Design piece, it's quite good and can also handle high rez formats, it just shows that on redbook high wonderful the CF DAC-040 really is.
Hi,

I've spent a lot of time looking for the best DAC for my drive MT (I've auditioned top line of DCS, Lavry, Métronome, Emm, MSB, Playback D., Danish Audio D., GTE, Zanden, AN, Kondo, Esoteric and more...); fortunately I've known the Concert Fidelity DAC-040 thanks to TJ's review. As soon as I've had the opportunity to hear it I've taken it and at the same time I've sold my reference SACD/CD Player.

In my opinion with my Métronome Technologie Kalista Référence as transport the CF Vacuum Tube DAC-040 sounds magically and better than all the others gears I've ever listened (combo or not, SACD or only RedBook)!

I've also heard a lot of hi-level analog front ends (included mine) so for my experience I think this DAC in this combo configuration sounds good like the best among them.

In short, I suggest all the audiophiles owned a RedBook collection to listen this DAC before purchase some other one because with a CF DAC-040 (equipped with the tubes you like more) they would be very happy as I'm now.

Regards