Experience with AMR DP-777


Hi there, I'm fairly new to audiogon, but have been assembling high-end systems for about 15 years now. Recently bought an AMR DP-777 and swapped tubes and it killed my left channel the first time. I'm no stranger to swapping tubes (in DAC's and Preamps), so I was surprised this happened. I've read some other threads that this sort of stuff has been an issue with this DAC. Of course the DAC sounds, but I have two questions/points:

1) for those of you that have experience rolling tubes with this DAC, what is your procedure to make sure it does cause some any system failure with the unit?

2) second thing is I've sent the unit in for the SE upgrade and will be able to report back to you guys the difference/improvement in sound, as I know it's sonic signature very well
jsch123

Showing 1 response by 1989firebird

Thought I'd hop in here. Latest news is that AMR is shipping the kits this month. From what I understand, the initial price is $1500, installed. This is especially set for those who have been waiting. For people who send in for upgrade later, there MIGHT be a slight mark-up. I think Darren is waiting to see how involved the process is. He always tests before, performs repairs/upgrades, tests every input and output after and then burns in for a while to make sure everything is OK. Usually takes at the very least 2-3 days for one unit. The upgrade is now an entirely new main board, which explains the mark-up. I guess we'll see what kind of improvements it'll give in the coming months.