That does look really cool carpathian! However it's also describes as "green technology" so half the folks here will hate it. 🤣
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Very interesting prospects for this new material but as jond pointed out, half the members here will be diametrically opposed to it because of its connections to green energy.
The only other new speaker driver material I know of is basalt (lava rock) that Revival Audio uses in its mid woofers and woofers. (akin to green energy as it's naturally occurring).
All the best,