I bought the CP4500 secondhand, so excuse my lack of knowledge on the build. My problem is the right channel keeps getting a boost in level. It seems like it has a little quirk - I'll turn T3 ever so slightly and it fixes the issue, but I'll come back the next day and it's back to being unbalanced. I've gone through the calibration steps and it works great when it's stereo matched. I really am not sure how to approach this issue so any advice would be greatly appreciated.

Thanks!