Controller for acoustic apparatus

Details Controller for acoustic apparatus Controller for acoustic apparatus

1991-08-23

1992-11-17

Dwyer, James L.

Electrical audio signal processing systems and devices

Switching

381 55, 381 59, 381 85, H02B 100, H03G 1100, H04R 2900, H04R 2700

Patent

active

051650975

ABSTRACT:
A surround system comprising front, center, and rear amplifiers which respectively drive front, center and rear speaker units. The system operates in a surround sound environment with low impedance (4.OMEGA.) speaker units. When high impedance speaker units are connected, the system automatically cuts the center and rear speaker units and operates in a non-surround sound environment by the front amplifier only. Accordingly, the system does not require a excessive large power supply unit.

REFERENCES:
patent: 4176251 (1979-11-01), Olden et al.
patent: 4389639 (1983-06-01), Torii et al.
patent: 4481660 (1984-11-01), de Koning et al.

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