[erich]

Okay, I probably should have noted in my OP that I have exhausted
that direction of searching before I started scouring the Internet. I am
waiting for a return call from the listed repair facility in Dallas, but
apparently since Mirage was taken over by the Klipsch Group things have
gone to hell in a hand basket. There was a guy in NY contracted by
Mirage to do repairs who was repairing these tweeters, post Klipsch he
is gone and I do not know how to find him. I must say the guy in the
parts dept. at Mirage was of painfully little help and rather genuinely
unconcerned that I have a very good pair of what was very expensive
speakers that are no longer properly functioning.

Yes, I can appreciate your frustration. The parts person at Mirage is
probably spending his time looking for another job and could care less
about customers.

I have a pair of AR-90 speakers that I purchased some 25-30 years ago and
found some support for keeping them going on classicspeakers.net. While
Mirage is not one of their specialties you might find some advise there.

I'd be persistent on this one - eventually some form of support will
emerge as there is clearly a need.