Feedback at a show. Only guitars effected?

[Chuck H]

+1
Bassman said "sounded like feedback and acted like feedback." To me (WRT electric, solid body guitars) that means squealing that changes pitch with pickup orientation. Or rarely a lower pitched rumble. We have a witness to the event. So the only other piece of evidence that can be attained is details about what it sounded like and how it behaved. I think I'd like to know.

[Enzo]

OK, I will believe the PA was not involved.

The thread may be long, but you know, it doesn't cost us anything, it just means we are interested in solving the puzzle.

You tried more than one amp, good. Your man walked away across stage and it still happened. OK, might be a clue.


Did you think to move the amp to the far side of the stage just to see if it mattered? Even if you could never play the gig with it there.

My earlier question about facing different directions still holds, if you did answer, I'm sorry. It may still feed back standing a distance away, but does aiming the guitar different directions change the sound AT ALL? If it is actual feedback coming from pickups, then facing different directions ought to at least affect the tone of the noise.

[GregS]

Were the bass amps plugged into a different power source from the guitar amps and PA? I'm wondering if the problem was noise and interference from the power source.

If you don't have to play this venue again then I'd say your problem is solved. I've had the odd situation where our amps were buzzing like crazy because of some sort of interference in the venue. Not a lot you can do about it.

Greg