I had the chance to do a direct A/B with the new Audio Horizons top DAC the 3.1Sv+ (Its not even in their website yet), the 3.1Sv+ with E88CC NOS is $4.9k, the 777 as you know is $5k.
I'm still in the process of choosing, but there was something with the AMR and depth and instrument placement that just couldnt convince me immediately. On the other hand, the Audio Horizons showed more detail, 3d depth and was slightly more musical, effortless and analogue sounding. What is keeping me from not jumping to buy the Audio Horizons? The preamp of the AMR, which is very good, and it might be a necessary sacrifice.
I will continue my audition of the two, so far I have eliminated the usual suspects: Weiss 202, BADA, PS PWD, EMM MA-1, Naim Dac.
I will post again with more detail. Digital has sure leveled up with vinyl...