most euphonic DACs?

Mhdt Havana, Havana Balanced or Stockholm v2 DACs. These are all Non-OS DACs with tube buffer outputs. Highly tunable via tubes, capacitors & ability to use either the stock PCM56P or the AD1865 chipsets. They can be voiced to sound euphonic but it's more a matter of sounding authentic, musically-convincing, having rich tone and being non-fatiguing to listen to.

Phil

I would love to hear more opinions from people here!

Hmm, Are you a dealer? 

Generally the term euphonic refers to a harmonious rendition of mid-tone with recessed leading and trailing edge. In digital audio that is often the result of inferior clocking or a soft analogue stage. In my experience authentic sound is very largely a function of good leading an trailing edge, phase coherence across the frequency spectrum, superior clocking and a very fast rise time PSU. All of this is usually not cheap. Audionote, Zanden, Line Magnetic, Acqua La Scala, Allnic and Weiss come to mind. no coincidence that many are tube based

The Allnic is also the most detailed DAC I have ever heard, this was the new $26k version. Lush and super detailed. An unexpected combination.

The new Schiit Byggi  should be a DAC to investigate (I am in the queue to get one).