Yes, that's the problem exactly. I have already been doing exactly what you said (that is, keeping the speakers at relatively high volumes and turning windows volume down) and that worked OK until recently. The problem I have is probably related to this but seems a little more severe. I have confirmed that it is the speaker with the controls on it. I can hook it up to different leads and it's still the culprit. Is this still consistent with the pot issue? Also, recently, the speaker is VERY VERY soft--as in you can barely hear it when you put your ear to it--when the other three are blasting away at half volume, then when you crank it a little louder, it kicks in all of a sudden with a little popping and crackling and it's back to its usual (i.e. only somewhat quieter than the rest (and you're right, it's not that perceptible at higher volumes, but it is still there). I never max these things out, and I have the low gain amp, so I don't think anything is blown, but this issue (aside from the regular lower volume thing) did just crop up recently.
Thanks again,
Matt
