Polk Audio PSW1200 instruction manual 40Hz 120Hz 0180

FIGURE 18.

				FRONT SPEAKER LEVEL OUT
				L		R
VARIABLE
LOW PASS
CROSSOVER						+
40Hz				120Hz
VARIABLE						–
PHASE
ALIGNMENT
0°				180°
					40HZ	SWITCHABLE
POWER
					80HZ	HIGH PASS
AUTO		OFF		ON		CROSSOVER
					FULL RANGE	(SPEAKER LEVEL)
SWITCHABLE
HIGH PASS
CROSSOVER
(LINE LEVEL)	40HZ		80HZ

+

FRONT	FRONT
LEFT	RIGHT
OUT	OUT
	–
LEFT	RIGHT
FRONT	FRONT
IN	IN
LEFT	RIGHT
REAR	REAR
IN	IN
CENTER 1	CENTER 2
IN	IN
	LFE/SUBWOOFER IN

VARIABLE LOW PASS CROSSOVER

(Fig. 18)–This control adjusts the frequency range over which the Subwoofer operates. This control only affects signals that are sent through the Front, Center and Rear line level “In” jacks and the Speaker Level Inputs.

It has no effect on signals fed into the LFE/Subwoofer input. When using smaller main speakers, the upper range of the control will probably yield the best results. With larger speakers, the lower end of the control range will prob- ably sound best, but always let your ear be the final judge. After setting subwoofer levels, you may want to

40Hz 120Hz

0°180°

experiment with the crossover frequen- cy setting. Turning the knob up will add more “warmth” to the bass and lower midrange, possibly at the expense of bass “tightness” and midrange clarity. Turning the knob down will make

the bass and lower midrange sound “thinner.” Experiment and set this control to taste.

VARIABLE PHASE ALIGNMENT

(Fig. 18)–Have someone else turn the knob slowly while you sit in your favorite listening position. Use music with good bass and a deep male vocal. When you hear the best balance of deep bass and the natural lower octaves

of the male voice, you have achieved

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