just picked up my ac15c1 yesterday. brillant sounding amp, and ill post more impressions on it once i brake it in a bit more. but first, i have a question. this is my first lower wattage tube amp, so any advice/tips would be great.
im getting a rather loud feedback/hum (not an ear spiliting high pitch sound, but more like a low constant hum) when i push the master volume high. not even sure if its "feedback" because i will have the volume quite low, just the master volume high, and im getting this sound. trying to get more overall volume out of the amp with a cleaner tone, but i keep having to cut the master back to kill the feedback/hum. is this normal for the amp? using an epiphone les paul with humbuckers.