question on MCM tweeters

[JAZZ2250]

Has anyone tried 53-530 and 53-570 MCM drivers (tweeters)?
Any specs available?
Well... actually 570 is a Dynavox stuff.

Any projects consisting of only MCM drivers?

 

[PEmrich]

I have build the Bangs which use 525 tweeters and the 1170 midwoofs. Good beginner project, sound good, play loud, cheap.