@soundsrealaudio they’re not real diamonds. diamond tweeters are made of synthetic diamonds that are vaporized on a silicon mould. it’s a vapour depositing process. after the diamond cone is properly hardened, the silicon mould is melted with heat. those are very thin cones and it would be impossible to cut real diamonds like that. as has been previously mentioned, the breakup frequency is pretty high (hence the lower distortions), but a diamond cone has more mass than beryllium and needs a stronger suspension. it means that it probably needs more power and wont’t play lower frequencies as easily as beryllium does.
