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
Sloppy on my part.  You are right.  The EMIT R is a ribbon super tweeter rather than an electrostat.  
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.
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?  
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
Troy, all we see posted about the Digm's are excuses and blaming other components.  I have looked at your posts on them for years now.

I heard them at the first stop of their North American tour here in CT with a Krell system and disliked them a lot.  just too bright.  They do some other things well, but they are just a bright speaker. I then auditioned them in other set ups and herd the same common problems.

I then even took you up on your offer to hear them in NJ and it was a ton of excuses on you products not set up due to a photo shoot the night before and I think some of you electronics weren't 'burned in', but my buddy Jeff heard the same thing with them that I did and he also had heard them at in other systems.

Many like that bright fatiguing sound, but most don't.  It's just that simple and there is nothing that will change that.  

These threads are fun to read though as it's teh same excuses.  It's also not like I have anything against Paradigm as I've purchased an pair of speakers and a sub from them in the past (daughters college system).  They were perfect for the dorms and cheap with the discounts they offer to move gear.  it's a great company who also stands behind their speakers.  

Just too bright for most of us, but keep this going and I get a refill on popcorn.