cdt has some pretty nice tweeters. so does focal but some find focals to be too harsh. also look at JL's tweeters and infinity perfects, and MB Quartz. all of those brands in my opinion are better than boston acoustics and polk. but neither one of them come close to the Dyn's tho.i dont really know about Morel's cus i never heard em. also i been hearin a lotta good stuff about Adire's new componets... anyone here heard those????