Multiple output transformer network for sound reproducing system
First Claim
1. In sound reproducing equipment, the combination of:
- an audio output power amplifier and a remote speaker unit coupled to the audio output power amplifier by first and second extension leads;
said remote speaker unit including first and second speakers, first and second autotransformers connected to the audio output power amplifier by the first and second extension leads respectively, a first bandpass filter coupling the first autotransformer to the first speaker, and a second bandpass filter coupling the second autotransformer to the second speaker, said first and second speakers being respectively high-frequency and low-frequency speakers, and said first and second bandpass filters being respectively high-frequency bandpass and low-frequency bandpass filters having predetermined cross-over characteristics, said first autotransformer comprising a winding having one side connected to the first extension lead and a second side connected to ground and having a tap on said winding connected to said high-frequency filter, and said second autotransformer comprising a winding having one side connected to the second extension lead and a second side connected to ground and having a tap connected to said low-frequency filter.
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Abstract
A multiple output transformer network for a high-fidelity sound reproducing system which includes a high-frequency speaker and a low-frequency speaker, first and second audio output autotransformers, a high-frequency bandpass filter coupling the first autotransformer to the high-frequency speaker, and a low-frequency bandpass filter coupling the second autotransformer to the second speaker, all of the foregoing components being mounted in a remote speaker unit. The winding of the first autotransformer is connected to the output amplifier of the sound reproducing equipment by a first extension lead, and to ground; and the winding of the second autotransformer is connected to the output amplifier of the sound reproducing equipment by a second extension lead and to ground; and the high-frequency and low-frequency bandpass filters are respectively connected to center taps on the windings of the first and second autotransformers.
34 Citations
2 Claims
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1. In sound reproducing equipment, the combination of:
- an audio output power amplifier and a remote speaker unit coupled to the audio output power amplifier by first and second extension leads;
said remote speaker unit including first and second speakers, first and second autotransformers connected to the audio output power amplifier by the first and second extension leads respectively, a first bandpass filter coupling the first autotransformer to the first speaker, and a second bandpass filter coupling the second autotransformer to the second speaker, said first and second speakers being respectively high-frequency and low-frequency speakers, and said first and second bandpass filters being respectively high-frequency bandpass and low-frequency bandpass filters having predetermined cross-over characteristics, said first autotransformer comprising a winding having one side connected to the first extension lead and a second side connected to ground and having a tap on said winding connected to said high-frequency filter, and said second autotransformer comprising a winding having one side connected to the second extension lead and a second side connected to ground and having a tap connected to said low-frequency filter. - View Dependent Claims (2)
- an audio output power amplifier and a remote speaker unit coupled to the audio output power amplifier by first and second extension leads;
Specification