Sonic Frontier Power 1 Tubes

I have a Power 2 and prefer the KT-88 tubes.

My preference is based on the power needed to push my speakers. I use the Power 2 to push electrostatic panels in a hybrid speaker. Haven't tried 6922s, but 6550s sounded much "thinner" in my application.

The people at partsconexion, which include the original designer for Sonic Frontiers have packaged upgrades for the SF amps and they all utilize KT-88s.

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.