Loudspeaker system having a bass-reflex port

Details Loudspeaker system having a bass-reflex port Loudspeaker system having a bass-reflex port

1998-02-26

1999-04-06

Dang, Khanh

Acoustics

Diaphragm and enclosure

Reflex baffle

H05K 500

Patent

active

058921834

ABSTRACT:
A loudspeaker system includes an enclosure (1) which accommodates a loudspeaker device (3) and a bass-reflex port (5) having two open ends (5b, 5c). The port has a longitudinal axis (5a) and a length (L) defined by the two open ends, and has a passage which flares towards the two open ends. This provides flared portions (5d, 5e) which extend over a substantial part of the length of the port. In order to minimize undesirable noises and distortions, the flared portions, in a longitudinal section of the port, have bounding lines (7) which extend at an angle .alpha. having a value of between 3.degree. and 12.degree. with respect to the longitudinal axis of the port.

REFERENCES:
patent: 4213515 (1980-07-01), Laupman
patent: 4284166 (1981-08-01), Gale
patent: 4987601 (1991-01-01), Goto
patent: 5623132 (1997-04-01), Gahm
patent: 5714721 (1998-02-01), Garoronski et al.

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