MULTI-ZONE AUDIO DISTRIBUTION AMPLIFIER

2104947 9314575 PCTABS00024 A multi-zone audio distribution amplifier system includes positions for several stereo amplifiers which may be used as modular and cascadale amplifier units. The system is enclosed in a housing (10) having a front panel with windows for exposing a set of led display circu...

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Bibliographische Detailangaben
Hauptverfasser:	FARINELLI, ROBERT P, ROSE, SHELTON P, MORGAN, MICHAEL E
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AMPLIFIERS BASIC ELECTRONIC CIRCUITRY DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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Beschreibung
Zusammenfassung:	2104947 9314575 PCTABS00024 A multi-zone audio distribution amplifier system includes positions for several stereo amplifiers which may be used as modular and cascadale amplifier units. The system is enclosed in a housing (10) having a front panel with windows for exposing a set of led display circuits (12a-12e) on the front side of the housing (10) and easy access to the modular units (16) on the rear side of the housing (10). Each modular amplifier unit (16) includes a printed circuit board (32) for an amplification circuit, a heat sink (36) and a loopback port (26a, 26b) for cascading the amplifier units (16). An interface board (42) includes support for the display and edge-connector receptacles (40a-40e) for receiving each printed circuit board edge (32) and for providing power to each of the amplifier units (16). Each amplifier unit (16) is operable indpendent of the others, and the desired amplification may be selected by electrically cascading the amplifier units (16) via the loop-back ports (26a, 26b).