Polyglass membrane

Polyglass technology, exclusive to Focal, consists of applying fine glass microbeads to a cellulose pulp cone.


EXCELLENT DAMPING

This process combines the excellent damping of paper with the rigidity of glass. The stiffness index even exceeds that of single-skin Kevlar® and is almost 10 times greater than that of polypropylene.


WELL-DEFINED MID-RANGES

Adjusting the mass-rigidity-damping ratio results in a remarkably linear frequency response curve, right from the membrane design stage. This innovation also significantly increases definition in the midrange register.

Focal products using this technology

Discover other Focal technologies

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