That's a great question concerning the change from EMIT (to Polycell to C.M.M.D.) by Infinity. I'm sure there were other tweeters in the mix, too, that I'm unfamiliar with. I wonder if it had to do with Infinity's acquisition by JBL/HK. Didn't they occur around the same time?
I prefer the Emit K to all the other Infinity tweeters. But I also know that proper integration of ribbon tweeters with standard drivers is very difficult. Back in the late '60's when I drooled over Infinities, they were quite high-end, innovative speakers with wonderful cabinetry. Somehow, HK has turned the nameplate into an average speaker, at best.
Hang on to your vintage Kappa gems.
