OPTION #4

This is the best option to use in stereo or Dolby® Pro Logic® systems with pre- out/main in jacks and small speakers.

Connect the preamp output jacks to the left and right inputs of the PSW650 with high quality RCA cables. Connect the left and right outputs of the PSW650 to the power amp inputs (Figure 9). The L&R outputs of the PSW650 are high-pass filtered and will prevent bass frequencies below 80Hz from getting into the front amplifier and speakers. This is desirable if you are using small speakers. If you are using large speak- ers and you want them to play bass, do not use this option.

FIGURE 9.

AC POWER

The PSW650 has a built-in power ampli- fier and must be plugged into a standard household 110-120V AC power source in order to operate.

The power switch has three positions: “On,” “Off” and “Auto” (Figure 10). In the “Auto” position, the amplifier will automatically turn on, and the green pilot light on the front of the subwoofer will illuminate, as soon as the speaker senses a signal coming from your elec- tronics. The amplifier and the green pilot light will turn off approximately 15 minutes after input signal ceases. In the “On” position, the power amplifier will operate and the green pilot light will illuminate until the switch is set to “Off” position or the AC cord is disconnected from a power source.

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Polk Audio 650 instruction manual AC Power

650 specifications

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