JBL P-7540 Applications, This wiring diagram shows a, JBL P-7520 amplifier set to bridge mode

MADE IN THE U.S.A.

SPEAKER OUTPUTS

		BRIDGE			FUSE		POWER
–	L	+–	R	+	30A	+BATT	REM	GND
					0
					3

2V

INPUT MODE

MO ST

4V LEVEL .250V

Figure 1. This wiring diagram shows a JBL P-7520 amplifier set to stereo to drive a pair of full-range speakers.

XOVER	80Hz
	PRE OUT
LP HP FLAT	LP HP FLAT
	32Hz FREQ 320Hz

				MADE IN THE U.S.A.
	SPEAKER OUTPUTS					POWER
+	+	–	–	FUSE
				40A	+BATT	REM	GND
				40

2V	80Hz
4V LEVEL .250V	32Hz FREQ 320Hz

Figure 5. In this expanded system, a JBL P-7540 drives two pairs of 5-1/4" 2-way speakers. The JBL P-7540’s pre-amp out- puts feed a JBL P-2510, which drives a single 12" subwoofer.

LINE LEVEL		SPKR LEVEL IN
FRONT	INPUT	REAR	–L+	AUX
	REAR	+R–		OUT
L				L
		+R–	–L+
R		FRONT		R

	MADE IN THE U.S.A.		Figure 2. This wiring diagram shows a
BRIDGE	FUSE	POWER
SPEAKER OUTPUTS
– L +– R	+ 30A +BATT	REM GND	JBL P-7520 amplifier set to bridge mode
	0
	3		(mono) to drive a single subwoofer or a
			pair of subwoofers (P-7540).
	INPUT MODE	2V	80Hz
		XOVER	PRE OUT
	MO ST	LP HP FLAT	LP HP FLAT
		4V LEVEL .250V	32Hz FREQ 320Hz

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		MADE IN THE U.S.A.
	SPEAKER OUTPUTS			POWER
FRONT	– L +	BRIDGE – R +	+BATT			FUSE	FUSE
				REM	GND	30A	30A		UNIVERSAL INTERFACE
							LINE LEVEL
							FRONT	INPUT	+ R –	REAR
								REAR		– L +
						30	30
							L
REAR									+ R –	– L +
		BRIDGE					R		FRONT

2V	FRONT	XOVER 80Hz	PRE OUT			80Hz	XOVER	REAR	2V
INPUT MODE	XOVER	AMP	F+R	REAR FRT	INPUT		AMP	XOVER	INPUT MODE
MO ST	FLAT HP	LP	FLAT	LP LP	FRT REAR		FLAT HP LP		ST MO

				MADE IN THE U.S.A.
		SPEAKER OUTPUTS					POWER
		BRIDGE			FUSE
–	L	+–	R	+	30A	+BATT	REM	GND
					0
					3

Figure 3. This wiring diagram shows a JBL P-7520 amplifier set for tri-mode operation. For a desired crossover fre- quency, use the chart on page 4 to select an inductor for the subwoofer, and cor- responding capacitors for left and right speakers.

6V LEVEL .250V 32Hz 320Hz 32Hz 320Hz 4V LEVEL .250V

INPUT MODE	2V	80Hz
	XOVER	PRE OUT
MO ST	LP HP FLAT	LP HP FLAT
	4V LEVEL .250V	32Hz FREQ 320Hz

3. After adjusting the level of the main

Applications

MADE IN THE U.S.A.

SPEAKER OUTPUTS

FRONT	– L + BRIDGE	– R +	+BATT	POWER		FUSE	FUSE
				REM	GND	30A	30A
						30	30
REAR	BRIDGE

Figure 4. In this example system, the front channels of a JBL P-7540 drive

a pair of 5-1/4" speakers. The JBL P-7540’s rear channels are bridged to drive a single 12" subwoofer.

speakers in your system, you should

adjust the remaining channels (if you

are using a P-7540 or a multi-amp sys-

tem) for the desired system balance.

You’ll find this easiest to do by adjust-

ing the channels in the following

order: 1) front speakers, 2) rear speak-

ers, 3) subwoofer. Elaborate, multi-

channel systems may be complex to

adjust. Your local JBL installation spe-

For your convenience, we’ve included several application diagrams to help you plan your own system installation. Figures 1 through 4 show how to con- figure the JBL P-7520, P-7540 or P-2510 for stereo, bridged-mono and tri-mode operation.

For system expansion ideas, see Figure 5 on the previous page. (Note: For sim-

	2V	FRONT	XOVER 80Hz	PRE OUT			80Hz	XOVER	REAR	2V
INPUT MODE		XOVER	AMP	F+R	REAR FRT	INPUT		AMP XOVER		INPUT MODE
MO ST		FLAT HP LP		FLAT	LP LP	FRT REAR		FLAT HP LP		ST MO
6V LEVEL .250V			32Hz	320Hz			32Hz	320Hz		4V LEVEL .250V

cialist is the best person to help with

such an adjustment.

plicity, Figures 1 through 5 do not show power, remote and input connections.)

6