Originally Posted by EuphonicArin
I'm back Bitches and I'm ready to serve up some hard chemistry on your asses
Anyways Beryllium is a metal that has been of topic today and in theory, it is the ultimate material for Loudspeakers/earphones/headphones except for three large flaws. Why is it good? you might ask, well because of its extreme elasticity, weight, and rigidity it can work excellently when properly implemented into a earphone or speaker. It's flaws, however, can have a much larger effect in it being able to be used, because: one it is extremely expensive (especially in small quantities); two since it is a metal it can start ringing after a certain point (somewhat unlikely with earphones); and three it is very reactive to the point where it can almost immediately oxidize and become a hunk of useless metal. The only way to get rid of all three flaws is to use it in a compound state wherein the beryllium is practically nonexistent, but enough to cover the diaphragm, and the beryllium would probably be of incredibly low purity (I'd say somewhere in the 50 percent range).
TL;DR: Beryllium is good, it just sucks to use unless if you've mixed it with cheap schiit to make it cheap
You neglect to mention that it is both a toxin and carcinogen.
There is a reason it was abandoned or outright banned by several sport and leisure industries.