What do you think about substituting another 1" dome tweeter for this one? I think I would probably replace both tweeters from both speakers if a stereo pair, but I think you might find this to be an acceptable solution. I'd probably keep the original units if I swapped them out, just in case.Also, have you checked with local speaker repair shops to see if they could just replace the diaphragm? Is there a local repair shop in your area?