Anyone ever heard of or experience headphone jacks of USB audio interfaces seeming to over time degrade or damage one driver or the other when it's left plugged in? I'm wondering if there could be DC leaking from a jack. Every headphone left plugged into my two interfaces eventually seems to get imbalanced. I just had one driver actually completely blink out. There are certain headphones I never plug into those jacks and I use outboard headphone amps plugged into the rear of the interfaces, and those headphones are perfectly fine. I'm not sure if it's the Emu or the Tascam interface that's doing it, as I sort of alternate between them. I'm also not sure what DC might do to a driver at a low level or how I would test for it, but I'm trying to figure out what this might be.