wrote in message
oups.com...

I have a pair of these (old) speakers, plus a full Acoustic Research
component stereo system from the same era (early 90's?) - all in great
condition, considering they have all been inn storage for the past 7
years or so.
Only problem is that the tweeters on both speakers have stopped working
and I have determined that it is the crossovers that have failed.

Anyone have any idea where I could get these replaced/fixed? I can't
even track down the web-site for Acoustic Research

As a temporary fix, try a capacitor from the woofer to the tweeter.