Balance on Tube Amp

Schitt SYS, Switch Your Stuff, 2 Way Switch with Potentiometer, use a pair of them for independent L & R, $49. each

Sounds like you do not have a preamp. There are multiple reasons to use a preamp, balance control is on of them.. a good one will improve the sound quality significantly in nearly all systems.

If you did not experience an imbalance with your previously mentioned amp - perhaps there is something wrong with the "recently purchased" unit.

DeKay

There aren’t many integrateds with volume balance capability. I have this issue and was going crazy with all the vocals shifted left, solved with the PSAudio Stellar, then decided to get tube/SS hybrid and finally found Mac MA352.  That Schitt box might have widened my horizons had I known about it but that’s ok. If you get your hearing checked you might be surprised. A balance issue can be a hidden problem, especially if you are one of those who is always straightening pictures on your wall.

I want to thank all Of You and Wish Every One A Merry Christmas..      Since I just purchased the Raven Audio Reflection from previous Osprey Amp this has widened the sound stage and much more detail is coming out of speakers than ever before....But this also makes me want to hear as much as possible..So I have Tinnitus really bad 50 years but I am still blessed at what I do hear and noticed left speaker was not as full sounding as right channel and moved left in 8 inches and OMG the difference and that is what made me think how can I adjust the balance to get that full sound stage...I may try Shiit SYS....