Here's the symptoms. When I play the speakers a "little" loud driven by an NAD 2200 (or anything I've used for that matter) one of the speakers drops out on the high end. Not totally, but things like the real high cymbals almost dissapear on one speaker. The tweeter still is producing, though. Just not as much as it should. I turn the volume down almost all the way for a few seconds then turn it back up again and it lasts 5-10 seconds and drops out the highs again.
I swapped the L & R speaker and the problem followed the speaker.
The weird thing is the tweeter is still working, just seems to be getting choked off.
Does this sound like a bad thermal switch? If so, can I take it out and just wire in a fuse block and use a 1 amp fuse like the old days. I don't trust the thermal switches, especially if that turns out to be the problem.