Compact spiral cavity loudspeaker enclosure

Details Compact spiral cavity loudspeaker enclosure Compact spiral cavity loudspeaker enclosure

1995-11-27

2000-05-16

Dang, Khanh

Acoustics

Diaphragm and enclosure

Reflex baffle

181160, 181199, H05K 500

Patent

active

06062339&

ABSTRACT:
A vented or bass reflex speaker. The speaker is secured to an inner sleeve which inner sleeve is received within an outer sleeve with the sleeves defining an annulus therebetween. Acoustical flow channels are formed in the annulus. The back of the inner sleeve is spaced apart from the back of the outer sleeve to form a vented volume. The air in the channels is caused, by the loudspeaker driver, to resonate with the volume of air contained within the open-ended inner sleeve forming a Helmholtz element.

REFERENCES:
patent: 2277525 (1942-03-01), Mercurius
patent: 4168761 (1979-09-01), Pappanikolaou
patent: 4298087 (1981-11-01), Launay
patent: 5189706 (1993-02-01), Saeki
patent: 5432860 (1995-07-01), Kasajima et al.

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