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I love the idea the author mentions in passing of a dedicated speaker assembly for ultrasonics. This seems like something that could be a huge margin business,

I love the idea the author mentions in passing of a dedicated speaker assembly for ultrasonics. This seems like something that could be a huge margin business, and the parts costs would be as low as you wanted.

xiphmont 11y ago
You're late to the game. Such high margin products have existed for some time. There are even published papers about them()! The published papers tend to be by the same people making the supertweeters