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Focal Polyglass Speakers Overview | Crutchfield Video

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Published on Aug 24, 2012

Focal Polyglass Car Speakers: http://www.crutchfield.com/i-rytvc05S...

Focal uses advanced materials and precision craftsmanship to build their Polyglass line of car speakers. They create the Polyglass cone by depositing a layer of hollow glass microbeads over a layer of cellulose pulp. This unique material combines the warm sound of cellulose with the incredible strength of glass for a cone that responds with extremely low resonance. A butyl rubber surround helps control cone movement and promotes high power handling. The zamak (zinc alloy) basket provides a non-magnetic non-resonant housing that won't color the sound.

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