Chosen Solution
the hum makes it unpleasant to use
monroe.boyd, Below is Peavey forum link that discusses/trouble shoots your issue and the 2nd link is a possible link for you to down load the Amp’s service manual/schematics. Good luck. I hope this helped you out, if so let me know by pressing the helpful button. https://www.peavey.com/forum/viewtopic.p… https://www.elektrotanya.com/peavey_nash…