Thread: humming amp

Does your amp have a built in cooling fan? If not, sit back and wait for smoke.

My amp makes two noises. The one is a fan spinning. The other occurred when I attached a capacitor and seemed to have a poor connection to power or ground (or both - not sure). I fixed it by removing the capacitor. It never hurts to ensure that you have a really, really clean ground. Sand down the paint around it and cover it all with some liquid gasket, paint or caulk to keep oxidation away.