Sonic Frontier Power 1 Tubes

Thanks for your input. Have you done any of the SF upgrades to your Power 2?

Hi, I used to have a Power 2. My favorite tubes in it for the 6922's were Amperex 6922PQ or Amperex USN 7308, both USA made. Have fun. Mike.

No the only change I've done is rolling the tubes to KT-88s. I live on the west coast and am not ready to ship my "baby" to Ontario and be without for so long.

I have a POWER 1 amp. I have tried the Svetlana KT-88's and pulled them out in favor of the stock Svetlana 6550C tubes. I then e-mailed PartsConnexion about this, and they informed me that I didn't really have Svetlana KT-88s. What I bought was basically Sovtek tubes, made in the Reflektor factory. Apparently, because of some legal issue, REAL Svetlana KT-88's are sold as "SED Winged-C KT-88" tubes. PartsConnexion recommended JJ Tesla KT-88's most highly for the POWER series amps. I have a set arriving tomorrow and will post again with my findings. I haven't tried replacing the 6922's yet, but I plan to try that soon. My inclination is to get Electro-Harmonix gold pins to replace the stock Sovteks. I've considered going the NOS route, but every time I think about it seriously I feel the neon "sucker" sign going on over my head.

I've put in JJ-Tesla KT-88's and I like them a lot. Today, I replaced the stock Sovtek 6922's with EH 6922 Gold Pins and so far I hate them. It sounds like I have blankets on my speakers. Do input tubes require some break in time?