Help my speakers are farting,,,,

Women dont fart , they poot........ but remember guys , two poots equal a fart ... so if you hear two...scatter!! RF

On a serious note: could be that your AC is polluted, and if the fridge turns on, it can cause noise in your amps. Same goes for lighting. On the other hand, there might be something wrong in your preamp, so listen if it occurs when the preamp is on/off. Also listen if it occurs with both mono amps. If it's just one, that one should also be checked.

It is almost certainly the tubes in your amps (or tubes elsewhere in your system, if any). Another term for the noise is "motorboating".

With the amps turned off and unplugged, remove and then reinstall the tubes. That is often all it takes.

Good luck.

I gotta go with the other guys on this one. I think your girlfriend has a ventriloquist farting talent and is trying to blame it on the speakers. If you didn't have an audio system, she'd probably be trying to blame it on your dog. And if you don't have one, then of course it would be someone or something while the TV was one.
I think you should sell tickets and beer for a session of that and could probably pay for your next pair of speakers with the proceeds. Get her on Dave Letterman!

Is there any odor eminating from around your speakers? Sometimes speakers just impersonate "sneakers" and cut some pretty nasty cheese when you're not looking. I'm sure that you've heard the saying that "these speakers stink"...they actually do!!! Some poor quality sourcing makes them build up back pressure in their chambers and eventually they just got to let er rip.