Balance on Tube Amp

Well just changed power tubes left to right and that seems to have made enough correction for my hearing ..Will have to play some more music to prove what I am hearing... I saw the tubes from factory were marked for locations in amp and like anything not always test numbers prove best sound for individual listening hearing.

There was/is a thread running in this forum from an OP who noted that one side of his system was noticeably stronger than the other side and he was looking for troubleshooting tips.

As far as your tubes, I don’t have any experience with your gear, but I do have a test CD that has a specific tone for testing AC voltage (with a multimeter set to ACV) at the speaker terminals or amp terminals. I have noted that the tubes in the balanced input sockets of my preamp will have an effect on thie readings. In other words, if one side has a higher reading than the other side, if I swap the balanced input tubes around, the high and low readings follow the tubes.

Where I was going with all of that, is maybe you have a weak tube(s) in your tube complement and it isn’t your hearing causing the issue you are experiencing.

(As far as your power tubes, I would have thought that if the bias was equal on both sides, that would compensate for a weak tube.  After re-reading your thread, maybe I was wrong in my thinking.)

With Tinnitus I am very sensitive to sound and detail and since I do not play music any higher than 78db I am searching for every noise that comes out of the speakers...And I ask my wife if she hears this and that and has NO Clue what I hear.. I have been listening for years to this same music I am playing and never heard what I hear with this tube amp & speakers...To me every tube even tested and balanced may still produce slight change in sound ..Your hearing is the only true test of what you hear from each tube .. If not for me coming here and asking about balance and response I probably would have not changed the tubes ..But doing so sure has made me a believer that each tube does produce different frequencies in what we hear..Thank You