I wonder if anyone else has had this problem: When I plug in and play through an amp in my basement, I get a sort of low-grade, rattle/buzz/dirt-sounding component to my notes. It doesn't sound like a blown speaker really, and it happens all the time- to varying degree depending on the cab I'm playing through. I've been told by someone here once that it's "RF interference". It sounds more like a sympathetic vibration than anything, until I realize it is surely coming from a speaker. Every cab. What is that? It makes me pretty damn uneasy and I'm sick of it... I'd at least like to know what it is. I wish I had a gig tonight so I could just assure myself it's not a blown driver! Can it be that every speaker I play through gets destroyed??... Any wisdom on this? Thanks.