Anyone heard any of them, and what do you think about the quality??? Thanks in advance.

 

I've never heard them, but I haven't heard anything good about them either.

 

The tweeters are ok, but overall they are too expensive. I have a fanatic x set from 3 yrs. ago.

You can get MB Quart reference series for like $135 or so. The sound quality is way better. Diamond Audio sounds pretty good too.