I replaced a quad of E-H KT88 with Gold Lions a while ago along with all my phono and preamp tubes. There was an overall improvement, but it's hard to tell how much was due to the power tubes.
Amplifier Power tubes - important to sound?
i replaced all the small tubes on my mono amplifiers and now I'm left with replacing the stock Power tubes, kt88.
I like what I hear with 12 new small tubes - telefunken nos 12ax7 and 12at7.
Now I am left with replacing 16 kt88 stock JJ tubes. will Probably use Siemens 6550 nos.
How much will this impact what I hear do you think? I recall hearing that power tubes don't make that much of a difference.