Any opinions on the AMR Digital Processor 777 Dac?

I am on my 2nd AMR DP-777 after 1.5 years of ownership, and I am still highly satisfied by its sound. Look at my 300+ audiogon feedback, and you know very few pieces stay in my system for more than a year.

Well, I wish the bass of DP-777 is slightly faster and tauter (like Wadia?), and I believe you can get more excitement with other DACs playing hard-rock music. But I won't sell my DP-777 any time soon.

It's very easy to get a good DAC these days: Esoteric, Benchmark, Lavry, Metrum... just to name a few, with clean, clear sound and ultra high resolution, superb definition plus the "WOW" factor for the first few minutes. And yes, there's nothing wrong with these products.

However, it is very HARD to find a musical DAC for the long run, DP-777 is such a DAC. Ask die-hard analog fans why they don't listen to digital, spend a good 3 hours with LP (do young kids actually sit there listen that long?) and try to listen to the same cut in digital again.

Nothing is the best and everybody has his/her priorities. I won't use DP-777 for studio monitoring (nobody should), but to connect my spirit with music, I can hardly think of any other DAC under $5000. Happy listening.

I enjoyed the DP-777 for a while but swapped it for the NAD M51. No looking back.

I'd make sure to listen to it before buying to my ears and in my system I didn't like it

I am considering buying an AMR 777 DAC. Have any of you guys tried the Berkeley Alpha USB feeding the AMR 777? Do you think it will sound better using a Berkeley feeding a BNC input? What is the ifi iUSBPower unit? Does it require 2 USB cables? I have an Audioquest Diamond USB cable is it a good match with the AMR?
I want to test this unit with the best possible setting.

Coxhaus, USB/SPDIF converters do make a difference, I am using Yulong U-18 with great result after trying a bunch (including Off-ramp4 with all options). The iUSB Power works on passive converters but has minimum impact on Yulong, which already have a robust active power supply. You do need two USB cables with the iUSB, I found USB cables make a small difference (don't use stock computer cable though), but coaxial digital cable makes a big difference.