audio research dac 3 vs m-f trivista 21

Two different products here ,the MF is SS and tyhe ARC tubed of cource.I haven't heard the MF but I do remember how people liked it for it's resolution.However I own the ARC DAC-3 and I am very pleased with the sound,silky highs and mids and very transparent,and I put it next to Sonic Frontiers SFD2 MK2,Northstar M192 and the Mark Levinson #35.A reminder that ARC has one of the best reputations in product repair and support if you ever need it,I know I sent mine to them for retubing a few years ago and came back spotless.I would buy the ARC DAC-3 if I were you.
Regards from Toronto.
George

Thenis
The DAC-3 is in my opinion very well designed and build as with all ARC products,sound is very detailed,emphasized highs and clear midrange,not too heavy or boomy on the bass,just good clear wide soundstage and no listening fatigue even after long sessions.Take a look at www.arcdb.ws for pictures and description.Again ARC offers great product support.Another great DAC I own and equally love is the Sonic Frontiers sfd2mk2.
Best
George