All of a sudden while rehearsing with the band this evening an odd chemical odor began to fill the practice space. Eventually after ruling out all the tube amps, the odor was originating from my bass cab, not the amp.
My amp is a Gallien Krueger RB-1001ii head, playing through a Mesa Boogie Powerhouse 4x10 cab. I use a Sansamp tech-21 pedal in front of the head to get some more distortion for my sound.
Prior to the smell I noticed that my lows in my tone sounded really big and farty almost, as well as my clipping signal on the RB-1001 was flashing quite often. Is it possible that I blew a speaker? Is the crossover in the back of the cab slowly frying? Is god punishing me for touching myself at night? I don't know.
The strange thing is, I let the amp and cab cool for about 15 minutes, tweaked out a lot of the low end, and then fired it back up. The rig sounded great for about 10 minutes and then the odor came back. Burning plastic it smelled like. So I stopped playing and let the amp and cab rest for the evening.
Has anybody ever come across issues like this before? I've only ever played guitar for bands, never bass, nor have I ever owned a bass rig, so I'm not sure what the issue could be. Good thing about the situation is that when I purchased the cab I purchased that pro coverage bullshit from guitar center, because I was worried that I might destroy the cab. So in the end I can beat the shit out of the cab some more and still get a new one. I'm just looking for some advice so when and if I need a new cab, I don't destroy another one.
Wirelessly posted (Wondernuts)
I have a powerhouse 410 cab and they're notorious for blowing tweeters even with the fuse in place. It could very well be that. If you take the rear cover off there's a pcb with se connectors on it. If you take the tweeter out if the circuit and try playing it again and the smell dissipates then you have your answer.
Even if the actual speakers in the cab blow it wouldn't explain the clipping led on your amp going off as that's just measuring the input of the signal coming in I believe.