I hope someone can help me here. I bought a set of 1.2 Klipsch speakers about a month ago and everything was working perfectly fine until today when I turn the volume really loud. Previously I have never turned them above 25% or so, because they are just that loud. But today I turned them around 40% and they started making loud constant high-pitched screeching sound, sort of like microphone or amp feedback. Below that they are still fine. I don't know what to do, if anything, or even if they are bad speakers or if it's system related. Obviously it's volume related, because I can turn the speakers up as long as the Windows volume is lowered. Any ideas on what I should do?