Hi. I have an OLD Garnet stencil bass amp that’s been acting up on us. Apparently it’s making a harsh “squeal” when you turn it on now. It made this sound before when we had it on with no bass plugged into it. Now it does it all the time.
I’m going to do all the obvious troubleshooting like swapping cables/instruments. If none of that works, I’m thinking it’s something to do with a bad tube connection (if it has tubes…. We’ve never opened it up before).
Any thoughts or suggestions for troubleshooting/repairing the problem? Has anybody else had this problem with an amp before?