"...As an aside, all ribbon tweeters have a Mylar plastic backing, to one extent or another, a solid metal aluminum ribbon would immediately deform upon flexation, because Aluminium has no stretch in it’s pure metal form; once stretched, it will never return to it’s past dimensions..."
True ribbons are solid metal and not on a substrate. And that makes them a little fragile.
True ribbons are solid metal and not on a substrate. And that makes them a little fragile.