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1. (WO2018100326) LOUDSPEAKER DIAPHRAGM

Pub. No.:    WO/2018/100326    International Application No.:    PCT/GB2016/053746
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Wed Nov 30 00:59:59 CET 2016
IPC: H04R 7/12
H04R 7/26
Applicants: B&W GROUP LTD
Inventors: O'BRIEN, Thomas
ROUSSEAU, Martial André Robert
Title: LOUDSPEAKER DIAPHRAGM
Abstract:
A loudspeaker diaphragm (12) comprising a woven fibre body supports damping material (25), for example PVA polymer, on a rearward-facing surface (24). The woven fibre body may be formed of lengths (14) non-metallic fibre material (for example glass fibre) coating with a thin metal coating (32). The mass of the layer of damping material (25) may be significantly greater than the mass of the woven fibre body. An attractive sparkly looking loudspeaker diaphragm (12) may thus be provided which damps undesirable vibration whilst providing a flatter frequency- response curve (50).