It’s been a few years since I purchased the preamp from Frank. I changed my speakers from 85 db efficient to 102 db efficient. I now hear some noise at idle and in between tracks. I figured because it has been a couple of years, it was time to get a new set of tubes to replace the originals. I placed an order for stock JJ replacements and received them in a timely manner from AVA. When I installed the new tubes, the output was significantly different in each channel. Both channels were significantly lower than the tubes they replaced. I have put the original tubes back in, as the new replacements were unlistenable. I sent an email late last week to AVA regarding the new tubes and I’m awaiting their response.
Should I consider other tube choices than the stock ones that were used by Frank and team to voice the preamp? If so, which ones?
Rest of the system: AVA Set 120 amp, Pi Seven Cornerhorns, Merason Frerot DAC, WiiM Pro Streamer, GR Research Servo Subs, dedicated listening room.
