Polk Audio PSW1200 instruction manual Surround Receiver or PREAMP/PROCESSOR

CENTER LINE IN–Connect Center line level preamp output here (Fig. 7). (There is no need to plug something into both center inputs; one would be redun- dant.) The signal will pass through the Variable Low Pass Crossover. Use a Y connector if you need to have this pre- out connected to a power amplifier or Main In jack.

When this input senses a signal, it auto- matically boosts the Subwoofer’s output

by 3dB. This feature is useful because most people like a little more bass for movies than music. When you are listening in stereo, the Center channel speaker is off so the boost does not “kick in.” As soon as you put on a movie in surround sound, the Center speaker turns on and the 3dB bass boost engages. If you do not want to use this feature, use an available input instead of one of these.

FIGURE 7.	SURROUND RECEIVER OR PREAMP/PROCESSOR
	REAR	CENTER	SUBWOOFER	( LFE
	PRE-OUT	PRE-OUT	OUT	Low pass
				filtered
				only )

					L	R
					FRONT SPEAKER LEVEL OUT
					L		R
VARIABLE
LOW PASS
CROSSOVER							+
40Hz				120Hz
VARIABLE							–
PHASE
ALIGNMENT
0°				180°
						40HZ	SWITCHABLE
POWER
						80HZ	HIGH PASS
							CROSSOVER
AUTO		OFF		ON
					FULL RANGE		(SPEAKER LEVEL)
SWITCHABLE
HIGH PASS
CROSSOVER
(LINE LEVEL)	40HZ		80HZ
							+
FRONT				FRONT
LEFT				RIGHT
OUT				OUT
							–
LEFT				RIGHT
FRONT				FRONT
IN				IN
					L		R
LEFT				RIGHT	FRONT SPEAKER LEVEL IN
REAR				REAR
IN				IN
CENTER 1				CENTER 2
IN				IN
LFE/SUBWOOFER IN

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