Band pass speaker

Details Band pass speaker Band pass speaker

1997-04-18

1999-08-03

Le, Huyen

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having acoustic wave modifying structure

381 87, 381386, 181199, H04R 2500

Patent

active

059335092

ABSTRACT:
A band pass speaker which can project tight clean bass with high quality sound, which is a speaker having a specially designed speaker box, including a first housing and a second housing. The first housing has a predetermined access opening on a front side and has an all around inner wall which provides an inner chamber with the predetermined access opening on the front side, at a back portion surface of the all around inner wall has a curvature, whereby the predetermined access opening is for receiving a second housing. The second housing has at least one sound generating unit mounted on a front side pointing forwardly, in which the second housing having an all around concealed inner wall providing a predetermined inner chamber, whereby at a front side edge of the front side of the second housing is for engaging into the access opening of the first housing leaving a predetermined output opening therebetween.

REFERENCES:
patent: 5637840 (1997-06-01), Kim

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