Does anyone know exactly how i could go about testing the driver?   That is, I can get an audio signal to the wiring, but where does the wiring go?  there is a single strand of copper wire that runs around the front of the driver, but i'm not certain if that would be positive or negative, and i...

Okay, I sorta took the plunge, after using some sr80's for a while, i was on the lookout for a bargain set of 325's, and then one pops up, it's the woodied one with one of the cans not working.  I received them yesterday, and took the cup apart, and there is a little piece of what appears to be...