Acoustics – Diaphragm and enclosure – Recessed
Patent
1989-07-21
1990-05-08
Fuller, Benjamin R.
Acoustics
Diaphragm and enclosure
Recessed
181141, 181144, 381 90, 381124, 381205, H05K 500
Patent
active
049230328
ABSTRACT:
A low-profile modular sound system comprises a completely self contained high fidelity speaker system which may be easily installed in the supporting gridwork for a suspended ceiling in place of a conventional acoustic ceiling tile. Each of a pair of speakers, including a woofer and tweeter, is installed in a rectangular mounting panel of a size and shape corresponding to a ceiling tile. A shallow rear housing is attached to the mounting panel to enclose the rear portions of the speakers and any other system components, such as a balance control. A single electrical connector attached to the outside of the housing provides an interconnectiion between the speaker leads and the external source of power for the speakers. The front face of the module includes a demountable grill which is attached to the mounting panel to enclose the front faces of the speakers and includes an acoustically transparent covering of cloth or the like which may be colored and/or textured to match the surface of the adjacent ceiling tiles. The module may be placed in the square enclosing section of a conventional supporting grid for a suspended ceiling such that it is supported around the peripheral edge by the conventional inverted T-shaped supports used in such ceilings.
REFERENCES:
patent: 3912865 (1975-10-01), Seebinger
patent: 4057689 (1977-11-01), Stallings, Jr.
patent: 4330691 (1982-05-01), Gordon
patent: 4484658 (1984-11-01), Grote
patent: 4597470 (1986-07-01), Takagi et al.
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