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 8 responses by melbguy1

Cts, I also aim for natural. Please refer to my post in the other thread. One can't forget that diamond is a form of carbon. And if you've read up on Magico's M Project, you would be aware that Magico made big strides forward with their latest MBD28 & MBD26 tweeters, and pioneering use of graphene in their midrange and bass drivers (which has resulted in cones which are 300% stiffer & 30% lighter than the previous generation). But the proof is in the pudding as they say & i'll be sure to post an update once my S7's are in situ!
Cts, most impressive. From the sounds of things Vandersteen make the most natural sounding speakers bar none..
Cts, I should talk much less about Magico, perhaps less about Vandersteen also. I still plan to listen to some Vandy's so I can see evaluate their strengths. Richard Vandersteen is an interesting guy, so i'm sure they wouldn't fail to impress.
Cts, no foul. You're one of the good guys on here & a knowledgeable chap.

I think what you described sounds like fine dining. Something about the art of combining all those elements into a good dish ;)
Cts, Magico's new diamond-coated Beryllium tweeter diaphragm by all reports is utterly natural and very smooth. The idea is to combine beryllium’s physical properties (closer to the theoretical ideal), yet without gaining the extra weight normally associated with diamond’s specific gravity. That may well be the ultimate dome tweeter material.
Cts, the Vandy 7 is a great sounding speaker given the right room and
accompanying equipment. And Vandersteen aren't standing still with
the release of the Vandy 7 Mk2 which by all reports is outstanding. I used
to own Marten Coltrane Alto's which used all-ceramic Accuton drivers top to
bottom, so I agree there are some advantages in using identical driver
materials. Interestingly, the Magico S7's use very similar materials in all
their drivers, incl: a diamond-coated beryllium tweeter (diamond being a
form of carbon), and hybrid carbon Nano-Tec/Nano-Graphene in the
midrange and bass drivers. From what i've read, the new drivers are a new
thing and breakthrough for Magico. Doubtless Magico want to stay ahead
of the game of manufacturers like Tidal, Wilson Benesch & Vandeesteen.
As you said, in the end the winners are we audiophiles.
Hifi, who said that? From what I can see only a couple of manufacturers
are using that material in the car audio industry. Secondly, Zylon has been
around since the 80's. If it is so good, why aren't any high end speaker
manufacturers using that material 30 years later? Also can you comment
on the specific weight, strength & gravity of Zylon vs Diamond, beryllium &
diamond-coated beryllium?

I can say Magico's new hybrid Nano-Graphene/carbon Nano-tec
diaphragms are almost 30% light and 300% stiffer than the previous
generation. So that company are not standing still.