Recent MHDT Orchid purchase is filling my bill for smooth and rich. Sharpness is minimal so far. So dependent on other system ancillaries. Smoother than Wyred or PS audio for me, but its a bit tubey and has one tube. Transparency can be a fine line for me.
NAD M51 upgrade
Been running a NAD M51 for a few years now and have been happy with the performance. I tried out a RME ADI-2 FS and found it too be too bright, and that it did not match the musicality of the M51. Any suggestions on a DAC upgrade? I'd like to spend <$2k. I'm using the NAD M51 as a preamp as well so I'd prefer a DAC that has remote volume control. Mytek, Chord and Metrum all seem to be highly regarded.