i've got a show tomorrow, and i just noticed a rattling sound coming out of my tube amp when i palm mute! any ideas on what it is and how to fix it?
Maybe too much gain or bass, that happens to me sometimes. Maybe your tubes are going bad. Those would be my guesses, but I'm no tube expert.
too much bass is probably out, it's an epiphone valve junior, so i only have volume knob, and tone on my guitar is about 3/4 of the way up.
Gain, i don't know. I had it about half way up when i noticed the rattle.
i got the amp a month ago, so i hope the tubes are still good.