@stevecham, the word is, the Quad glue problems started after their production moved to China. For those who like to shoot the messenger, I’m not saying it’s true (or untrue, for that matter).
I have original Quads (57’s), but if I was going to spend $13,000 on new ESL’s, it would be Sanders or Music Reference I would buy. Both made in the U.S.A. by people who care.