Interesting, this sounds familiar from my day job. Seems that textrem (ultra thin carbon fiber sort of tapes) driver diaphragms are made by Composite Sound. I wonder if there is something worth in their claims:Material Trend: TeXtreme Everywhere
One of the things I noticed most was the rise of TeXtreme membranes. Borellsen had them, even Gryphoon did too. I keep spotting this material more and more. Looks like it’s becoming the new state-of-the-art membrane material.
TPCD Technology- Engineered speaker cones and diaphragms
Discover Thin-Ply Carbon Diaphragm (TPCD) technology by Composite Sound. How high stiffness, low-mass and controlled resonances improves sound quality.
composite-sound.com
