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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
cleeds
6,275 posts
 
verdantaudio
... my old Infinity Kappa 8.1s which had an electrostatic tweeter sounded great ...
That didn't come from the factory with an electrostatic tweeter. Did you modify the speaker and add one to the system?
verdantaudio's avatar
verdantaudio
1,533 posts
 
Sloppy on my part.  You are right.  The EMIT R is a ribbon super tweeter rather than an electrostat.  
cleeds
6,275 posts
 
verdantaudio
The EMIT R is a ribbon super tweeter rather than an electrostat. 
No, I'm pretty sure the Infinity EMITs weren't ribbons, either.
verdantaudio's avatar
verdantaudio
1,533 posts
 
I have seen the original EMIT described as a single ended ribbon and the EMIT-R as a radial ribbon or a "leaf tweeter"  I have never heard of a "leaf tweeter" and can't say that I know what that is.   People who have old stock refer to the EMIT-R as a radial ribbon.  

If they aren't a ribbon, I would love to know what they actually are.  Can you please explain?  
verdantaudio's avatar
verdantaudio
1,533 posts
 
never mind - found it

"EMIT's are not ribbon speakers. They are planar magnetics. Planar magnetic speakers have a voice coil printed on or attached/glued to a diaphragm. With true ribbons the entire radiating surface is a conductor.
The name EMIT means; electromagnetic induction tweeter."  

Thus EMIT-R would be Electromagnetic Induction Tweeter - Radial
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