Mainly running from the Left out. Tried running both outs to no avail.
Input 1 is currently guitar, input 2 is same. I've tried various combinations of guitar, aux, and variax.
Mixer for A is Center. 0db. The input is set to left/right amp channel A.
No combination of db leveling or panning on Amp B eliminates the direct clean background. It is currently set to center and the inputs are left/right amp channel B.