Hello all! I have searched the internet high and low (since I bought these things yesterday) and can't seem to find anybody else who has had the same issue that I'm dealing with. So yesterday I got my hands on a set of infinity overture-2 tower speakers for 10$ (beyond a steal from what I've read on this site, except they're missing grill covers). But anywho, they sound spectacular and after about an hour of using them, the built in powered sub in the left speaker cut out. The right tower works great and has 0 issues as far as I can tell. The sub cut out once, and when I adjusted the bass volume with the dial on the speaker it began working again immediately making me think it might've just went into standby. However, the second time it did it, I couldn't get it to turn back on. Both times it did this was after about an hour of use. Anybody know what would cause this? I don't know if it's important but the first time I plugged the speaker in it gave off this high pitch whine, but after I unplugged it and plugged it back in, it went away for good.