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.

 

emergingsoul

And I was feeling bad because I needed 12 tubes. If you like the way it sounds now, stock tubes might be the best budget replacement. It you want more with great top end extension kT-88 Gold Lions sound very good. Yes, power tubes are everything.

Why on earth would the output tubes of a tubed amplifier be important to the sound.  I really do wonder.

I'd say that the power tubes are the overall type of sound and the other tubes are more of fine tuning. 

I think you should do this….replace your tube gear with solid state. You’re going to accomplish two major objectives - 1) have less noise in your system and 2) make less noise in the forums