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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 3 responses by joman

joman
167 posts
 
I would be very interested in your perceptions regaurding the upgraded DP 777. I am considering the SE update as well. Would like to hear from folks who have gone the SE route.

I have no experience rolling tubes in the AMR. There is a long thread on Computer Audiophile that discusses this DAC and similar results concerning tube rolling, among other things.
joman
167 posts
 
The SE update has been discussed for over 6 months and AMR has failed to deliver. By that I mean, it has yet to ship. They say the capacitors are still being manufactured. If anyone has any more information than that please pass it on. Inquiring minds would like to know.
joman
167 posts
 
I received the same notice. Pricing was suggested at $1500 with a possible slight uptick. At this point in time I am disappointed, the update is a year late, is twice as much as originally suggested , and the price still isn't locked in. Not sure what a "slight" uptick means. If it is like anything else in what is quickly becoming a financially outrageous hobby it could mean a final price tag of two grand. I'm getting off this merry-go-round.
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