Loudspeaker unit

Details Loudspeaker unit Loudspeaker unit

1987-03-24

1988-11-08

Isen, Forester W.

Electrical audio signal processing systems and devices

Having non-electrical feature

Loudspeakers driven in given phase relationship

381195, 181145, H04R 102

Patent

active

047838205

ABSTRACT:
For a good and efficient sound reproduction from a loudspeaker unit it is prescribed that two woofers are arranged back to back, one on a front plate of the unit and the other on an internal partion plate, whereby a front compartment of the unit operates as an effective bass reflection system, while a closed rear compartment contributes, via the rear loudspeaker, to improve the quality of the reproduced sound. The back to back arrangement of the two loudspeakers results in a non-vibrating unit.

REFERENCES:
patent: 2002390 (1935-05-01), Crosley, Jr. et al.
patent: 2768702 (1956-10-01), Lowry
patent: 2872516 (1959-02-01), Hoffman
patent: 3688864 (1972-09-01), Guss
patent: 4268719 (1981-05-01), Manger
patent: 4472605 (1984-09-01), Klein

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