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I just got the amp back from the tech, and well ... it's friggin' AWESOME!The previous owner must 've done the worst retubing job ever, because the poor thing was failing from input stage to power tubes, with blown fuses and a bad cathode along the way.
I got home, plugged it into the 410hlf, set gain to 6 and master to 5 ... and shook the furniture! Waaay more volume than I had on monday with both gain and master maxed! I did not dare to max both out again to make the comparison (several babies and young mothers in my building, don't want to disturb them too much).
I got really really close to the tone I've had in my mind for three years now, I'm sure I can get even closer with time and tweaking.
I won't have band rehearsal for the next two weeks, but I'm pretty sure I'll be able to keep up with my drummer and guitarist now, even with my less than ideal cab. This amp with 8 10" or 4 12" speakers should be more than enough for any stage I'm playing.
Yay!![]()

and at low volume I could hear a slight ringing sound.
Mine rings at precisely 13K and it drives me fn nuts...it's not the tubes...any Ampeg gurus know what's going on here and what needs to be replaced? Thanks.
with nothing plugged in, it's not the tubes...low volume but always there.Is it feeding back thru the Bass or ringing without the bass plugged in ?
Eddie
Ampeg offered me this great pearl of wisdom:with nothing plugged in, it's not the tubes...low volume but always there.
Ampeg offered me this great pearl of wisdom:
"Thanks for writing and sorry to hear about your amp! Your best course of action will be to get your amp checked out by one of our repair technicians. Here is the link to our Service Center locator:"