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 4 responses by sciencecop

@mijostyn
Now for those of you that want the ultimate point source speaker that will go loud enough to bust your eardrums you get four Accuton C168-6-490 midrange drivers and two C30-6-024 tweeters for a total price of $5000.00. Make a simple 6 dB/Oct crossover at 3000 Hz..


No kidding…
Did you look at the frq response? These mids have a 10db(!!) breakup at 7Khz (!!!) starting to clime at 3Khz (!!!!). With 6db slop, let’s say starting at 3K (actually more like 4KHz, if you using 6db XO and don’t want to burn your tweeter on the first note), you will be listening to ceramic hell the entire time!
You can’t use "simple" XO with these, or basically any worthy, drivers.
The amount of nonsense people post here is hilarious, but of course anyone can build a loudspeaker...
@mijostyn
Do you even understand what a 6db XO is? How about breakup modes? The geniuses you are, you surly understand the difference between a 6db electrical XO (simple - but unless the frq. response of the driver is flat, which is not in this case, not phase coherent) and 6db acoustical slop (very complicated - phase cohere). Or did you not get to this part in your loudspeakers 101? There is nothing simple about building loudspeakers. That is why simple minded people should stay out of it. The speaker you are proposing will not be phase coherent, will sound horrible due to the fact you didn’t suppressed the breakups, and will not play loud at all (yes, you will blow up the tweeter in no time). 
@mijostyn
Like I said, you are a geniuses, rewriting the book on loudspeaker design. Please share the bliss with us and show us your speakers, and of course measurements of your “child's play” results. I am sure you know how a phase cohere step response looks like, right?
Mijy,
Waiting for some pictures...
And since you admitted you have “test equipment״ should be no problem showing test results (although according to you tests continued signals are worthless, so what exactly are you testing?)

Until then, you are added to the “ignore these wannabes” list.