Synchronous common polar resonant wall type speaker cabinet

Details Synchronous common polar resonant wall type speaker cabinet Synchronous common polar resonant wall type speaker cabinet

1992-02-20

1993-04-20

Gellner, Michael L.

Acoustics

Diaphragm and enclosure

Reflex baffle

181199, H05K 500

Patent

active

052045013

ABSTRACT:
A synchronous common polar resonant wall type speaker cabinet comprises a speaker fixed to its front board, and one or more resonance means on the other wall boards, in which each resonance means includes an air pressure compensation chamber surrounded by a rigid conductive hood, a compensation resonance chamber surrounded by a rigid wall board, a resonance plate between the air pressure compensation chamber and the compensation resonance chamber, a soft expansion gasket located between the resonance plate and the rigid conductive hood, and another soft expansion gasket between the rigid conductive hood and the rigid back board so that the resonance plate can oscillate by changing of air pressure in the air pressure compensation chamber, and hence a surrounding sound effect superior to that available from matrix speaker system is obtained with only a speaker without any increase of driving power.

REFERENCES:
patent: 2097287 (1937-10-01), Olson
patent: 2713396 (1955-07-01), Tavares
patent: 4413703 (1983-11-01), Kato et al.
patent: 4618025 (1986-10-01), Sherman

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