It depends entirely on the tweeter and the waveguide. Large tweeters can work really well in waveguides.
Beryllium Tweeters? Goona be dead soon coz Materion sells no Be foil anymore! So any Be stuff is dead dead dead now! (see Scan Speak message on website)
sorry for the bad hews
sorry for the bad hews
Materion continues to sell Be foils last I've heard. They discontinued only one foil with a particular thickness. Speaker manufacturers can switch to other thicknesses.
lol it even says that same thing on Scanspeak's news page
https://www.scan-speak.dk/scan-speak-newsletter-aug23-alert/
"Alternative material has been offered to us and is already ordered. However, it takes time until it is delivered, tested, and approved for production."
https://www.scan-speak.dk/scan-speak-newsletter-aug23-alert/
"Alternative material has been offered to us and is already ordered. However, it takes time until it is delivered, tested, and approved for production."
That's good! So the Scan news department was a bit too quick on generalization! Does anyone know for sure these Be tweeters of today have a pure Be foil? Or just an Be alloy? In the past only Yamaha had a pure Be dome tweeter/midrange (33mm/88mm) manufactured using vacuum deposition on a copper substrate which is later etched away ...
Afaik - JBL is coating their metal dome with Aquaplas (PVA glue?) , if memory serves me well here ... to get rid of any inherent "metal" sound!
So - any damping is good damping 🙂
ps .. and any love is good love :
So - any damping is good damping 🙂
ps .. and any love is good love :
Looks like Biesma have the same sourcing problem with Be. Production seems deleted.
Btw, are Be tweeters from SBAcoustics the same quality dome (plain foil) ?
I always wondered if the extra details some are hearing in Be is about the material itself or just the upper breakups frequency ? Cause you know Al has that things for the harmonics of bass percussion that doest it so well. Seems something curious in the Be vs Al choice.
Btw, are Be tweeters from SBAcoustics the same quality dome (plain foil) ?
I always wondered if the extra details some are hearing in Be is about the material itself or just the upper breakups frequency ? Cause you know Al has that things for the harmonics of bass percussion that doest it so well. Seems something curious in the Be vs Al choice.
I had once a Yamaha Beryllium tweeter , true Be nothing faked . I tried to remove the diffusor made of Bakelit (duroplastic very brittle) , I failed to remove the diffusor properly and damaged the Be dome with a inward dent . I tried to push back the dent from the other side but no luck! It is unbelieveable how stiff Be is!
With any other tweeter (except diamond) it is easy to test the stiffness of a dome using a ball-tip type of pencil , for elastic materials like titanium any dent jumps back without leaving a deformation . Not so with Be , you press quite hard against the dome much more as you would normaly do and it just don't dent! Shocking! Since that event I have quite some respect for Be , it's a hero metal 🙂
With any other tweeter (except diamond) it is easy to test the stiffness of a dome using a ball-tip type of pencil , for elastic materials like titanium any dent jumps back without leaving a deformation . Not so with Be , you press quite hard against the dome much more as you would normaly do and it just don't dent! Shocking! Since that event I have quite some respect for Be , it's a hero metal 🙂
My impression is that Be does not ring at all , the internal damping factor is quite high , ask Google for more info!
I searched www for electrodeposit of Be on a suitable substrate and found a specialist for galvanic stuff who said he tried for years and could not make it work , others failed too , so I also gave up ....
I searched www for electrodeposit of Be on a suitable substrate and found a specialist for galvanic stuff who said he tried for years and could not make it work , others failed too , so I also gave up ....