JBL service manual E250P/P12SW subwoofers, important that you avoid join, Subwoofer

E250P/P12SW subwoofers

Analog Receiver/Processor – Speaker-Level Connections

Use this installation method only with an analog receiver/ processor that does not have digital processing or bass management, and also does not have a subwoofer output or a volume-controlled preamp (line-) level output:

Connect the speaker wires for both your main left and right speakers, and for the sub- woofer, to the same speaker terminals on your receiver or amplifier. The wires may be

the left high-level inputs on the subwoofer. Insert the joined (twisted) wires into the left front (+) terminal on your receiver/amplifier. Connect the free end of the (+) lead for the left front speaker to the (+) ter- minal on the back of the speaker. Connect the free end of the (+) lead for the left input on the subwoofer to the left binding-post terminal. Repeat this process for the (–) connections for the left front

speaker and left input on the subwoofer, and then for the (+) and (–) connections for the right front speaker and right high-level inputs on the sub- woofer.

Connect your receiver or amplifier’s center and sur- round speaker terminals to the corresponding terminals on the back of your center and surround speakers.

joined by twisting together the bare ends of the two leads that will be connected to each terminal on the receiver/ amplifier, as shown in the diagram. This procedure should be done only four times (involving a total of eight bare- wire ends), and only for those wire ends that are being con- nected to the terminals on your receiver/amplifier. It is

important that you avoid join-

ing any other wires. Do not twist together

wire ends that are being inserted into terminals on any speaker or on the subwoofer. Do not twist together wire ends that will be used for any speakers other than the front left and right speakers or the subwoofer. Refer to the connection dia- gram for guidance.

Twist together the (+) leads at one end of the speaker wires that you have designated for the left front speaker and for

Left Front			Center		Right Front
+	–				+	–
			+	–
		Subwoofer
				L
				HIGH
				LEVEL
				IN
		+	–	R
			Receiver
	Left Front		Center		Right Front
	+	–	+	–	+	–
		Twist		Twist
		Here		Here
	Left Surround				Right Surround
	+	–			+	–

Left Surround			Right Surround
	+	–		+	–

To (+) terminal on left speaker

To (+) terminal of left input on subwoofer

To front left

(+)terminal on receiver/amplifier

7