Annoying Ampeg BA115 buzzing.
I bought this amp last month to replace my old 25 watt, and it played smoothly until this week. Now whenever I strum certain low or high notes, the amp has a small buzzing sound. I wasn't concerned at first, but now it's getting annoying.
I know it's not my bass, because I've tried 3 basses with the same result.
I've zeroed the sound in to the small box attached to the amp next to the power cord output. And the buzzing changes pitch occasionally. Other high notes and mids sound fine, but E string and certain A string notes make it buzz.
Anyone have this issue before, or know how to fix it?
(sorry that the attached photo is somewhat blurry, my camera is not here, and I only have an ipad at my disposal)
"Scott, if your life had a face, I would punch it."
Rickenbacker Club #528 Lone Wolf club #100