Loudspeaker with acoustic band-pass filter

Details Loudspeaker with acoustic band-pass filter Loudspeaker with acoustic band-pass filter

1988-06-02

1989-10-24

Fuller, B. R.

Acoustics

Diaphragm

With resonant chamber

181144, 181148, 181150, 181154, 181156, 181163, 181199, 381154, 381159, 381 90, A05K 500

Patent

active

048755460

ABSTRACT:
A loudspeaker having means for acoustically impeding excursion of the transducer diaphragm and means for acoustically attenuating the output of acoustic vibrations of frequencies above a preselected frequency. The loudspeaker includes first and second subchambers separated by a dividing wall in which the transducer is mounted. A first port acoustically couples the first subchamber with the second subchamber and a second port acoustically couples the second subchamber with the outside environment surrounding the loudspeaker.

REFERENCES:
patent: 2689016 (1954-09-01), Lang
patent: 3449519 (1969-06-01), Mowry
patent: 4083426 (1978-04-01), Peugh
patent: 4142603 (1979-03-01), Johnson
patent: 4410064 (1983-10-01), Taddeo
patent: 4549631 (1985-10-01), Bose
patent: 4616731 (1986-10-01), Robinson
Audio Cyclopedia, "Loudspeaker, Enclosures, Headphones, and Hearing Aids", Howard W. Sons & Co., Inc., 1974, pp. 1101-1105.

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