Why use diamond for tweeter domes? It may seem extravagant, but the move is simply an extension of Bowers & Wilkins’s pursuit of the perfect loudspeaker.
One element of our quest for the best is the development of drive units that neither add nor subtract from the signal. In a tweeter, that means creating a dome that remains rigid, exhibiting perfectly piston-like behaviour, as far up the frequency scale as possible. Best for this are materials with a high stiffness to density ratio – which is where diamond comes in.
In the below video, Bowers & Wilkins Head of Research, Gary Geaves, explains the science behind diamond tweeters.