Electrical audio signal processing systems and devices – Including frequency control
Patent
1990-12-27
1993-03-02
Dwyer, James L.
Electrical audio signal processing systems and devices
Including frequency control
381 96, 381121, H03G 500, H04R 300, H03F 2100
Patent
active
051916169
ABSTRACT:
An acoustic apparatus comprises a cabinet, and a loudspeaker unit having a pair of input terminal, a first and a second driving systems disposed in the cabinet. The acoustic apparatus is driven by an external power amplifier which normally constant-voltage-drives a conventional loudspeaker. The first driving system supplies the entire of a input driving signal to one input terminal of a loudspeaker unit and the second driving system supplies component signals of the input driving signal other than ones in the specific frequency band. As a result, driving systems drive the loudspeaker unit with the component signals of the input driving signal in the specific frequency band in cooperation with the external amplifier.
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Chiang Jack
Dwyer James L.
Yamaha Corporation
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