Stereo speaker system having acoustic filter for improving...

Details Stereo speaker system having acoustic filter for improving... Stereo speaker system having acoustic filter for improving...

2011-06-07

2011-06-07

Faulk, Devona E (Department: 2614)

Electrical audio signal processing systems and devices

Including frequency control

C381S001000, C381S335000, C455S569100, C455S575100, C455S041200, C455S041300

Reexamination Certificate

active

07957545

ABSTRACT:
A stereo speaker system including: a speaker unit having a plurality of speakers which output audio; and a filter unit selectively receiving low frequency components of the outputted audio. The filter unit eliminates the received low frequency components to decrease back pressure on the speakers. Thus, the phenomenon of air-loading caused by back-pressure is removed and the low frequency characteristic of stereo speakers is improved by activating the vibration of a vibrating plate.

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