Just as a test for this situation, try pulling your girlfreind's finger with the stereo off! She may be forced to confess her little secret.
Help my speakers are farting,,,,
I have a pair of mono tube amps hooked up to my speakers, and according to my girlfriend they are making farting noises, which I have to concur with, I do have a cheater plug installed, which took care of the hum, so I haven`t a clue as to why the noises, This is something that just started, there been no changes to my system, please help,