REMOVE

[Skezza]

I have a 2 x 10 with an adjustable horn tweeter which I always have turned right off.

The other night when we were setting up to play our guitarist said he could here a sort of crackling very faintly.

He is a pain for tracing the slightest buzz any way it was the tweeter in my 2 x 10 even though it was turned off making a slight crackling like old radio static.

will I need to diconnect the tweeter to stop it altogether

and was it as i suspect a product of neon lights low volage downlighters and 50 year old electrics in the pub

skez

Edited February 1, 2012 by Skezza

[leftyhook]

the pub may have cause a hum, or constant buzz, but a crackle? Maybe the crackle was just a buzz being enhanced as you played?

I will leave it to the electrical experts on the forum.

I will say that it always seems to be the bass player, doesn't it?

[EBS_freak]

I had a similar problem and it turned out to be that the circuit board in the amp had actually come a little loose. I tightened up the screws and applied a little silicon over the top of them. No problem. It may not be this but it took me ages to find as I was concentrating on the cab itself, the power and the surroundings rather than the amp itself!

[shizznit]

Tweeter horns operate with very little power and can be quite sensitive to unstable electric current. I have come across this problem a few times before myself. If the crackling is not there when the amp is home then problem identified, but failing that doing a quick general health check like EBS_Freak did won't hurt. Tweeter problems are generally easy to diagnose and remedy.

[stevie]

It could be one of several things, of course, but you should check out the L-pad used to control the volume of the tweeter. As you've had the tweeter turned down, the L-pad has been on its maximum setting all the time. Just adjust the control a little with the amp on. If it crackles, you've found the culprit.