Loudspeaker housing

Details Loudspeaker housing Loudspeaker housing

1990-01-19

1991-10-15

Brown, Brian W.

Acoustics

Sound-modifying means

Housing or enclosure

A47B 8106

Patent

active

050566180

ABSTRACT:
A loudspeaker housing which is a one-piece casting or is assembled of two or more separately cast sections is obtained by pouring into one or more mold cavities a mixture of three components, namely a hard first component (e.g., particles of sand with a grain size of 0.1 to 3 mm) having a high specific weight, a second component which has a viscosity of between 150 and 10,000 mPa.s (such as a twin-component adhesive or a grouting compound), and a relatively soft but heavy third component (such as granulated rubber tires and/or polyvinyl chloride and/or polyethylene). The sound damping characteristics of the thus obtained loudspeaker housing are superior to those of housings which are made of wood, plastic or ceramic material.

REFERENCES:
patent: 4802551 (1989-02-01), Jacobsen
patent: 4869346 (1989-09-01), Coudoux

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