Multiple output transformer network for sound reproducing system

Electrical audio signal processing systems and devices – Including frequency control – Having crossover filter

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381 77, 381120, H03G 500

Patent

active

055984800

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.

REFERENCES:
patent: 3697692 (1972-10-01), Hafler
patent: 4237340 (1980-12-01), Klipsch
patent: 5327505 (1994-07-01), Kim

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