H - Electricity – 04 – R
Patent
H - Electricity
04
R
H04R 3/00 (2006.01) H04R 29/00 (2006.01)
Patent
CA 2167219
The present invention is an active speaker system having an input signal monitor means to monitor the input signal level and generate a power-On/Off command signal controlling the main system power of the build in audio amplifier of the present invention active speaker system . The present invention active speaker system needs no extra control wires, and is therefore highly compatible with all conventional audio sources.
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