Hans, have you ruled out interconnect or speaker cables? You might try reversing everything going back to the source. If it is affecting both sides, you might try one speaker in another system.
8 responses Add your response
Hans this was a horn tweeter; was in a Belle Klipsch speaker. I believe it was made by ElectroVoice. It was only slightly damaged & more audible at higher levels, but even at background level it was distorted. I fried the voice coil; it had some shorted windings although it still functioned. Victim of square-wave amp-clipping & completely my own fault. If you don't hear any distortion then your tweeters have probably survived intact.