<font color='#000000'>Just happened on this site now I can't get off. I have a pair of NS 1000M's. Haven't used them in years. 1 or both tweeters got fried by too much Distortion or so said some guy I knew that was as a TV repairman. My kid who is now 22 turned up loudness or volume or something when he was 6 and I know 1 tweeter was bad. Old Nakamichi stuff drove it. All is vintage 77 or 78. Are the speakers worth fixing and are beryllium tweeters available anywhere?</font>