KLIPSCH TWEETERS, WHICH STOCK TWEETERS ARE THE BEST

I have an old EV S12-S cabinet that may have a bad tweeter. It's the ST350A which has the round magnet like the older Klipsch K77. I replaced it once before.  I emailed Bob Crites about it and he told me there are NO good replacement diaphragms for these at all. He said the one's on eBay are not very good.

The Horn measures 5" X 6" and I don't really want to cut into the cabinet to fit a replacement horn/driver. I want to use the cab for electric and acoustic guitar so it may not be as critical but I'd prefer to rebuild the original if I can with something that will last.

Has anyone heard a good replacement diaphragm?

Simply Speakers has a replacement diaphragm 89486A but other than the reviews on their site I have seen much info on it so I don't know if it's just another supposedly inferior China import part.

Viridian, thanks for your input on this, its always good to hear from a hands on person.....So many of the observations are made by people that do not have first hand experience with this type thing.....Thanks