What has blown my tweeter????

I also would refer you to several recent threads regarding the known hazard domestic cats pose to stereo equipment. Cats have been observed lying on amplifiers and sitting/crouching on top of speakers. If a cat or pair of cats has had access to your listening room, you should sequester and interrogate it/them. Quite possibly one of them or even a whole gang has made off with the tweeter. If you don't do something now, your woofer could be next.

My audiophile cat does not agree with Sarah, and thinks the dog buried it in your back yard. If the tweeter is still there, then check the wiring.

Tweet,tweet.......tweet-tweet.

Thanks for the humorous replies. My use of hyperbole was perhaps a little confused... The tweeter is still physically in the speaker, it just doesn't emit any sound. I did notice however that on the day previous to the tweeter malfunction there was a high pitched sound when I turned the volume on the Cap 101 up without any source input. When I reached 30 on the Led, the right speaker (the blown one), made a strange crackling sound... It was not immediately broken though.

Might this be due to static? Something wrong with the Cap 101?

Does your speakers have some type of fuse device?