Thinking about getting a R2R DAC


Dear community,

I currently have a chord qutest DAC. I like it a lot, very full sound, accurate detailed and exciting.  However, whenever I go back to vinyl (with a well-recorded nice pressing) I find the sound so much more satisfying.  There is a warmth, yes, but there is a presence, a 'there-ness' that I just don't get with the digital.  I'm wondering if an R2R DAC would get me closer to that?  my budget would be around the same as the qutest.  I was looking at the MHDT Orchid or the Border Patrol.  Don't get me wrong, I really like the Qutest.  I am thinking of putting it in the upstairs system to pair with the Node2i I have up there.  Any thoughts?  Will analog always just be a different animal than digital?

Currently in the main system I have a Sonore uRendu feeding the Qutest which is going to a LTA MZ2 going to a Pass XA 30.5

thanks!
adam8179

Showing 2 responses by thaluza

Choosing a dac is like choosing any other audio component. There are compromises to be made. Proponents of R2R dac's, so it goes, are attracted to the notion of simpler signal paths. With no filtering, noise shaping, error correction, upsampling or oversampling it theoretically leads to less "mucking up" of the sound. Proponents of Delta Sigma dac's say that that all the processing is necessary to pass along the most accurate data that can be transformed into the most accurate analog waveform. Both camps have valid arguments. I will say that in my experience, measurements are not the end all. The proof is in the listening.

I was looking for a dac for my streaming and file playback sources (Laufer Teknik Memory Player and Mojo Audio Mac Mini). So I tried several dac's and kept an open mind:

1. Yamamoto YDA-01, Delta sigma. Very nice, balanced sound if all you need is a coax connection. Unfortunately, it has no USB input. I used a SPDIF/USB adapter with this dac and with this implementation it did not sound as good as the next dac that I tried:

2. Border Patrol DAC SE, R2R. A bigger, wider soundstage with what seemed like naturally filled in images that created an intense "you are there" feeling. Analog sounding, but not as good as my LP playback system. The BP was a little smeared, especially in the low end, compared to the Yamamoto, but the midrange had more "pop" in my system.

3. Benchmark DAC3L, Delta sigma. A front row presentation that amazingly was easy to listen to despite its in you face character. Perfectly sized images, great soundstage. However, to my ears it was ultimately sterile sounding, with the sense that the performers were each in their own sound booth at a recording studio, instead of performing together on a stage. I can see how this dac would appeal to those who want to hear every bit of detail in their recordings. 

4. PS Audio DirectStream, FGPA. Very smooth sounding. Too smooth. Images were noticeably smaller than any of the other dac's that I listened to. Bass is similar sounding to the Border Patrol dac, but weaker than that of the Benchmark. Not what I wanted.

5. Mojo Audio Mystique v.3, R2R. The one I kept. Huge, seamless soundstage, images perfectly placed and perfectly blended together. Most realistic sounding among the dac's that I tried. I listen to digital sources with the Mystique more than I listen to records now, but my LP playback system is still a little better. Just a little. The sound I am going for is "performers on a stage" versus "performers in sound booths" which is why I chose this over the Benchmark, which came in second place in my view. 

Compared to the others, the Mojo has the best parts and the most beefy power supply. The signal paths are short, although short signal paths can be seen in some of the other dac's that I tried. Anyways, I bet it is these attributes that is more important for good sound, not whether the chip used is R2R or Delta Sigma.


@ddafoe, my perception of the Mojo and high frequency detail was upended when I bought a pair of Altec Lansing Valencia speakers last month. The horn based Valencias have their faults, but their presentation of cymbals has been revelatory to me. I give the Mojo at least some of the credit for the clean, full bodied, unforced sound I hear. I would bet that some of the other dac’s I tried, or the Topping D90 that you owned, would not be so friendly with the Altecs. The Mojo is a fine example of a well implemented R2R dac.