I have a pair of LS 50's that I got in 1996. They've always sounded great but recently one of them has developed some distortion and a "buzzy" sound. I thought it might be my amp or speaker wires but after some fiddling isolated one of the drivers that was making the sound. I popped it out and disconnected the wires and the speaker sounds good again. Could it be something else other than the driver itself like internal wiring or crossovers or?? I don't want to spend the $$ to repace the driver and have it be something else.