dbx Pro 12 Series operation manual Rear Panel Descriptions, Rear Panels

OPERATION MANUAL ®

power switch or a master equipment power switch. Since the 12 Series Equalizers consume a relatively small amount of power, the units may be left on continuously.

REAR PANEL DESCRIPTIONS

Rear Panels

1231 - dual channel 31 band graphic equalizer

POWER

24 WATTS

100V 50/60Hz

120V 60Hz

C A U T I O N : TO REDUCE
THE RISK OF FIRE REPLACE	RISK OF ELECTRIC SHOCK
ONLY WITH SAME TYPE FUSE .	DO NOT OPEN
A T T E N T I O N : UTILISER	ATTENTION: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR
UN FUSIBLE DE RECHANGE DE	WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
MEME TYPE .
	SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
PROFESSIONAL PRODUCTS
A HARMAN INTERNATIONAL
COMPANY
SALT LAKE CITY, UTAH	MANUFACTURED UNDER ONE OR MORE OF THE FOLLOWING
MADE IN USA	U.S. PATENTS: 4,234,804 4,316,107 4,329,598 4,331,931 4,377,792
MODEL 1231
EQUALIZER	4,403,199 4,409,500 4,425,551 4,434,380 4,454,433 4,471,324
	4,473,793 OTHER PATENTS PENDING

OUTPUT					INPUT
OUTPUT	OUTPUT		INPUT		INPUT
	+	-	-	+
		CONNECTOR POLARITY
		PHONE:	XLR:
		TIP	PIN 1
		RING	PIN 2
		SLEEVE	PIN 3
OUTPUT					INPUT
OUTPUT	OUTPUT		INPUT		INPUT
	+	-	-	+

1215 - dual channel 15 band graphic equalizer

			C A U T I O N : TO REDUCE
	POWER		THE RISK OF FIRE REPLACE	RISK OF ELECTRIC SHOCK
			ONLY WITH SAME TYPE FUSE .
				DO NOT OPEN
			A T T E N T I O N : UTILISER	ATTENTION: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR
			UN FUSIBLE DE RECHANGE DE	WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
			MEME TYPE .
				SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
	24 WATTS
			PROFESSIONAL PRODUCTS
			A HARMAN INTERNATIONAL
			COMPANY
			SALT LAKE CITY, UTAH	MANUFACTURED UNDER ONE OR MORE OF THE FOLLOWING
			MADE IN USA	U.S. PATENTS: 4,234,804 4,316,107 4,329,598 4,331,931 4,403,199
			MODEL 1215
			EQUALIZER	4,409,500 4,425,551 4,434,380 4,454,433 4,471,324 4,473,793
100V		50/60Hz		OTHER PATENTS PENDING
120V		60Hz

		OUTPUT			INPUT
CONNECTOR POLARITY		OUTPUT	OUTPUT	INPUT	INPUT
PHONE:	XLR:
TIP	PIN 1	+	-	-	+
RING	PIN 2
SLEEVE	PIN 3
		OUTPUT			INPUT
		OUTPUT	OUTPUT	INPUT	INPUT
		+	-	-	+

Power Switch: Switches the power on and off. Always make audio connections with the power switch in the OFF position.

Power Cord Receptacle: Connects AC power to the equalizer.

Output Connectors: Three types of output connectors are provided for output connections: male XLR type con- nectors, 1/4" tip-ring-sleeve phone jack connectors and a barrier strip.

Input Connectors: Three types of input connectors are provided for input connections: female locking XLR type connectors, 1/4" tip-ring-sleeve phone jack connectors, and a barrier strip. The maximum input level that the equal- izer can accept is +22dBu (ref: 0.775Vrms).

Chassis Ground Lift Strap: By removing the jumper connecting the two screws on the barrier strip, the chassis ground is separated from the circuit ground of the equalizer. This is sometimes necessary to prevent “ground loops” in a sound system. When lifting the ground strap, you must make a connection from the circuit ground () terminal to some other ground point in your audio system in order for the equalizer to function properly.

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