SPEAKER SYSTEM

PROBLEM TO BE SOLVED: To provide a powered speaker system which can freely control the output of voice signal by the control from the outside in a speaker system provided with a power amplifier circuit. SOLUTION: In the speaker system in which a sound source is inputted from the outside, the voltage...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ISHII KEI, TANIMOTO KENICHI
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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