Patent ID: 6389139
Filing Date: 2002-05-14
Classification: H04R,H04S

Abstract:
A powered volume control for connecting between an audio source and one or more remote speakers, comprising:an input circuit, adapted to be located proximate the audio source, for receiving an audio signal from said audio source for providing a preamplified signal output; an amplifier circuit, adapted to be disposed remote from the input circuit, for receiving said preamplified signal and for providing an amplified signal output which is substantial replication of said preamplified signal and said audio signal from said audio source; an output circuit, co-located with the amplifier circuit, for providing said amplified signal output to said one or more remote speakers; a variable adjustment device, co-located with the amplifier circuit, for allowing a user to adjust the magnitude of said preamplified signal and/or the gain or bias of said amplifier circuit such that said amplified signal output can be continuously adjusted over a predetermined range to provide volume adjustment of said one or more remote speakers; and wherein the input circuit further comprises a connector block also located proximate the audio source for receiving and outputting to the amplifier circuit the audio signal from the input circuit, for outputting the audio signal to the amplifier circuit, and for separately outputting a power supply signal to the remote amplifier circuit for powering the remote amplifier circuit.