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beryllium vs diamond

Hi guys, today's technology has brought us a new type of tweeter made of diamond or beryllium. Do you know what are the strengths and weaknesses of diamond vs beryllium? Which one is the more expensive? Has today's dome tweeter better resolving power than the venerable electrostat? Jim Thiel once said that dynamic designs will be getting better all the time and will probably surpass electrostatic designs.
dazzdax

Showing 1 response by big_greg

big_greg
6,715 posts
 
I have no experience with diamond tweeters, however I recently picked up a pair of second hand  Focal Electra 1008 BE speakers and am using them in a near field setup in my computer room, driven by my Audio Research VSI 55 integrated and they sound fantastic.  I don't care for "bright" speakers and the Focals are not to my ears.  They are very detailed, but the top end doesn't call undue attention to itself.  I don't play them super loud, but have tried them out in my main system and in many ways they bested my Legacy Audio Focus 20/20's, but they are too small for that large of a room.

There are some "reviews" (sales pitches) on Upscale Audio's youtube channel on a couple of the Focal speakers that use the BE tweeters.  You might get more technical info from those.
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