let me come back and tackle some important queries posed...
I wonder if your final 3 would have changed if did not have a preference for a volume control?
for fixed output dacs, i would put a few i have had in the same sonic league (or very close) as my favorite three already covered, i could easily live with any of these sonically - i will make a few comments on the sonics of each
-- audio note kits dac 4.1 -- for a tube dac, very saturated and surprisingly spotlit sound, rather forward treble and excellent drive, to go along with terrific imaging... did note just a touch of sibilance and splashiness, but this likely cured with carefully tube rolling
-- mojo mystique v3 -- very sweet, delicate, analog sounding unit, maybe a touch lacking in drive and the last degree of inner detail -- i feel my msb analog dac has a very similar highly musical presentation but with somewhat superior imaging and drive
-- metrum pavane/adagio -- in my view, still cees ruitjenberg’s best efforts (including his later sonnet morpheus, which i did not like) -- utterly smooth rich yet detailed incisive sound, saturated and tonally accurate but plenty of drive when called for
-- bricasti m1 mdx as mentioned earlier (sonically a weiss clone to my ears)
I am also interested in getting your opinions on what are the best value Dacs among the ones you have tried.
in their respective price ranges, i would nominate the following
-- denafrips pontus/venus -- rich midband and midbass, coupled with a vast layered soundstage... very hard to beat in the $1500-low 2’s (be sure to listen in oversampling mode) -- pontus has just a fine grain thru with the upper mids/lower treble that the venus smooths out
-- mhdt tube buffered dacs (ideally with upgraded tube and output caps) -- sweet rich yet sufficiently insightful sound, very analog tonality but with pretty good drive -- hard to beat in the $1000-1500 range -- definitely in the sweeter smoother school and great for systems with klipsches tektons focals b&w’s i think -- walks you back from the bleeding raspy edge
-- chord qutest -- yang to the mhdt’s yin under $1500-- open detailed fast simply holographic, maybe a touch lean but will breathe life and insight into many systems (harbeths, vandys and so on)
-- gustard r26 -- so impressed with this $1500 streamer/r2r dac -- sounds like a good schiit yggy (lively detailed top, but sweet warm mids, great tone) with a roon ready streamer to boot (wow!) -- since i started this quest i considered gustard/matrix/smsl as lowest common denominator guangdong swill, but this one really surprised me with its really excellent sound and full feature set
-- the cambridge cxn v2 with modwright tube output mods -- $2000-2500 unit with full streamer preamp and oversampling dac using real deal modwright 6dj8 tube output stage (not just a tube buffer) -- tremendous sound (think of it as an audio note 4.1 lite) and full feature set -- dan wright’s tube designs have always sounded so right to me (awful pun, i know 😂)
-- finally, for an older/used dac, i would heartily recommend the musical fidelity trivista 21 -- wonderful sound, tube goodness with sweetness with insightfulness up top and excellent drive and bass foundation -- these are seen used not much over a grand, they are excellent sounding