Spencer, Gmood1 & anyone who might be interested:
I finally got my lazy ass to make a comparison between my Wadia 861SE with GNSC Reference mods & my Scott Nixon Saru DAC+. A Goliath & David sort of comparison as the 2 units are from the opposite end of the spectrum. Not an entirely fair comparison, I agree, but these are the only 2 DACs I have on hand & so it had to suffice. So, that's the disclaimer, FYI.
Executive summary: the Wadia was overall better sounding (surprise?) but the Saru DAC+ was very, very, very good in & of itself. Too damn surprisingly good for its price point.
The setup is: Wadia 861SE with GNSC Reference mods fed into my CAT SL1 Mk3 preamp using Amperex white label 7308 USN-CEP & Ei 12AX7 in the line stage. Analog cable is TARA Labs Master Gen 2. Stock Sony DVP-S7000 transport & Scott Nixon Saru DAC+ with 4Amp power supply. Digital cable is XLO ER-6. Analog cable is Groneberg TS Premium.
I played a few CDs: Art Pepper "Winter Moon", Dee Dee Bridgewater "DEar Ella" & Reinhart Fendrich "All the Best". So, the comparison is not extensive.
Saru DAC+: a little brighter than the Wadia. Could not have noticed this if I didn't have the Wadia on hand. Excellent dynamics. Very natural sound. Plenty of bass but the Wadia has more. Really nice midrange.
Wadia: superbly natural. No hi-end glare & very smooth. Each instrument in the track is dilineated in its own space & its easy to follow all the instruments. The Saru DAC+ also reproduces all the instruments but they are not as easy to follow. The bass is tight & superbly controlled thereby making it easy to follow the bass tracks. This is not as easy in the Saru DAC+. The music just flows from the Wadia w/ great ease - no track seems to ruffle its feathers. In the Saru DAC+ I did get a feeling that it was "scurrying around" a bit. The DAC kept pace w/ the music & did a fantastic job but if it were a human being, it would have been a bit out of breath. Not so w/ the Wadia.
The PRaT factor of both DACs was really very good. In this short evaluation I could not find any serious faults in the Saru DAC+. The Wadia was much better. Was it as much better as the price difference? Certainly not! I also wonder if my DVP-S7000 had some power supply mods + some internal chassis damping would the results have been even closer? Probably!
So, this is a testimony to the progress that has been made in I.C.s that support the audio market. A few of them put together judiciously in a diminutive package can seriously challenge a Goliath like the Wadia 861.