Heh, I gues beryllium is metal - I had to google it. Most metal dome tweeters are made from aluminum or titanium or maybe even magnesium. These all have rather low frequencies where they flex/resonate and breakup (such as somewhere between 20khz and 22khz. Sometimes you can raise the resonance frequency as high as 28khz with something like a ceramic coating. However, these will still be in the range where it will affect brightness/harshness of the natural highs between 10khz and 20khz.
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The Beryllium tweeter will not resonate or breakup until somewhere in the 44khz to 48khz area, so you really won't hear any breakup/harshness with these. Diamond tweeters resonate even higher, at somewhere around 75-78khz.
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The Beryllium tweeter will not resonate or breakup until somewhere in the 44khz to 48khz area, so you really won't hear any breakup/harshness with these. Diamond tweeters resonate even higher, at somewhere around 75-78khz.
