My Dumb Amp

Reist · Post by **Reist** » Mon Oct 23, 2006 9:24 pm

For some reason, my amp has started making really obnoxious rattling noises. Some sort of vibration seems to be going on, and it wouldn't really be a problem, except for the fact that my condensor mics are picking it up. It happens mostly when I hit the low range of my guitar. Has anyone else encountered this problem and would like to give advice?

Post by **Spud** » Mon Oct 23, 2006 9:51 pm

Yeah, we have a Behringer amp, too.

Leaf · Post by **Leaf** » Tue Oct 24, 2006 7:58 am

Does it have tubes? If so... they may have worked loose. Pull em out, push em back in.

Is it a cheap littlle combo amp with a reverb effect? Maybe the reverb effect component has fallen off its bracket, and so it's swinging around on a wire, making a rattling noise.

Is it a high quality professional bass amp, like an Eden or a SWR that you are using for guitar? Maybe it's tuned to a different frequency spectrum and it's simply over-reacting?

Did you drop it recently?

Did you immerse your guitar in some type of liquid, like maybe a 2% milk bath or perhaps a mild anti-baterial soap mixed with water at a 10% - 90% water ratio? That might be it. It might be wet.

Wait. Wait. I can guess...but while I'm at it... nice joke Spud.

Tell ya what JR... if you can tell me why my C5 is swollen, I'll diagnose your amp with out any details. heheh.

Need more info man... like the following:

Make and model of device
year of device
audio sample
history of amp (was it dropped, did you berate it for going to the chorus one bar too early, you know, anything that might make it under perform.)

Good God. You DIDN'T tell the amp it was....too small....did you?

Dude. NEVER tell an amp it's too small. There's your problem.

bz£ · Post by **bz£** » Tue Oct 24, 2006 11:43 am

It's probably just one of those low-quality Behringer screws that needs to be tightened. HOWEVER!! Don't go open up your amp and fuck around with it if you don't know what you're doing. (And you don't.) You can leave your amp unplugged for a week and it may still have enough power in there to kill you if you touch the wrong thing.

Might as well just take it to an amp tech. It shouldn't cost a whole lot and there is no risk of death. Plus, it may be something like a damaged speaker that you can't really fix anyway.

Sober · Post by **Sober** » Tue Oct 24, 2006 12:27 pm

A: Reverb spring became exhausted/loose
B: Dirty pots
C: Putting 2 condensers on an amp you admit is crappy
D: Not enough info

Tube/solid state, clean/drive channels or both, reverb on/off, brand/year/model

With zero information, I put money on your reverb spring being out. Yes, there really is a real spring in your amp, and that's really how most amps get their reverb (less true more and more, but still %90 of standard amps). Generally an easy fix.

Reist · Post by **Reist** » Tue Oct 24, 2006 3:28 pm

My amp's a fairly new Trayner, which is probably not the most high quality, but I'm pretty sure it doesn't have a reverb effect. Would chorus cause those same problems? I could try turning that off. I didn't drop it either. It just happened overnight without me doing anything.

ken · Post by **ken** » Tue Oct 24, 2006 3:47 pm

Don't be afraid to open it up. Be careful what you touch, but open it up and see if there are any loos screws and if your speaker is okay.

Ken

Post by **Lunkhead** » Tue Oct 24, 2006 5:01 pm

Specifically, stay away from any high voltage capacitors inside, right? They can store up electricity and give you a bad (possibly deadly) shock. Or am I confused?