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View Full Version : amp squeeling/feedback


ash
02-08-2004, 10:47 PM
played last night at church using a marshall avt100 and had some serious problems with this unwanted noise. i have had this problem before with this amp, but last night was the last straw and i am really keen to rectify it.

the sound comes through when the gain is turned anywhere above 4 on both channels. it seems to be worse when the built in effects are on. i tried several things such as changing guitars, leads, standing in different positions, not putting the amp through the sound system, using no fold back, changing the settings. afetr i did all of this i ran out of ideas...and patience!!!

the sound doesnt happen when i use the clean channel so im fairly confident it has something to do with the gain.

as i said, i have had this problem before, as have the other guitarists that use it. i didnt realise that everyone else could hear the noise, but afterwards people told me it sounded pretty poor.

anyone have this problem or has any suggestions as to how i can eliminate this without just playing with really low gain settings???

Bizarro
02-09-2004, 04:07 AM
Sounds like a bad tube. Does that amp have tubes?

Or it could be a bad cable somewhere in the system.

ash
02-09-2004, 10:20 PM
the amp has a tube pre amp ( i think, my memory and terminology arent that good), and i have read quite a number of reviews on this amp where people have had the same sort of problem. very very frustrating

i actually didnt see whether the cables were the problem so i must give that a go. thanks for that.