Monitor ampliphones

Details Monitor ampliphones Monitor ampliphones

1980-12-22

1983-09-27

Pellinen, A. D.

179 1GQ, H04S 700, H04S 300

Patent

active

044069200

ABSTRACT:
An improved headphone arrangement in which a first audio signal is coupled to a speaker in each headphone and a second audio signal, usually monaural, is coupled to an amplifier and then to the same speaker in each headphone via an isolation network. Switching circuitry are also provided so that the speaker may be connected directly to the second audio source without amplification. The headphone is used as a musician's practice aid or for track-making or similar purposes. The first audio signal is preferably a prerecorded signal while the second audio signal is preferably the output of the musician's electronic instrument.

REFERENCES:
patent: 3878472 (1975-04-01), Osakabe
patent: 3902120 (1975-08-01), Dascal et al.
patent: 4245136 (1981-01-01), Krauel

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