Counterpoint - Alta Vista - Mike Elliott


I was just informed that Mike has stopped all business because of health reasons. The Alta Vista Website confirms this. I know some of you may have had some issues dealing with Mike in the past but Mike was always a professional to me and accommodating to all of my dumb questions. I learned so much from his designs and I know that they were way ahead of their time. I just finished modifying an SA-5000 for a few audiophiles based on the information provided on the Alta Vista Audio website and they sound excellent. I still own the current version of the NP-220 power amp.

Well my thoughts and prayers go out to Mike and his family.

Thanks Mike for everything.
bigkidz

Showing 5 responses by johnsonwu

Oh No!!! So sorry to hear that.
Mike Elliott was one of the several people who sparked my interest in DIY and mods. I have learnt a lot from this eccentric genius over the years.
I was also fortunate enough to meet many fellow audiophiles around the world who are into Counterpoint and Aria amps, not to mention having the pleasure of meeting several friendly audiogon members here in the Bay Area and have fun with NP tweaks and repairs.
I wish Mike all the best and a speedy recovery whatever his ailment is.
I hope between Bigkidz and myself we have enough knowledge base for NP power amps to support the existing fan base.
Buy service manuals / schematics from Catherine Weber per the website. I bought mine.
I have the schematics and I have serviced no less than 5 of them.
Most of them have failures like popping caps, rustling plate resistors, blown rectifier 6CA4 and blown Zeners.
Why would anyone take out 3 valves?  I assume they are the 12AX7 error amp and the 6922 pass element in the regulator section.
If thats the case then the preamp is no longer B+ regulated and you might as well use a Chinese preamp.
The SA-5000, unlike the 3000 and 2000, is a bit tough to service due to the floating chassis and the rather delicate regulator section.
Good luck finding someone to rebuild it.  IMO you might want to find a used unit on Ebay rather than trying to rebuild a butchered unit.