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.

emergingsoul08-12-2024 9:19pm

jasonbourne71 Details Discussions Posts This discussion Message User 1,441 posts 08-13-2024 at 06:00pm Copy Comment URL Report Comment Edit Delete Siemens never made a 6550.
jasonbourne71 Details Discussions Posts This discussion Message User 1,441 posts 08-13-2024 at 06:07pm Copy Comment URL Report Comment Edit Delete @dogearedaudio : I don’t believe you. The 807 uses a top anode cap and a seven pin socket. It is not swappable with octal power tubes. I had some in my tube collection.
jasonbourne71 Details Discussions Posts This discussion Message User 1,441 posts 08-13-2024 at 06:19pm Copy Comment URL Report Comment Edit Delete @carlsbad2 : The 807 is a seven pin top cap connector anode tube. It is not swappable with octal power tubes. So how can you compare it to the common octal power tubes as you claim?