The Model PSW108 Powered Subwoofer is a downfiring 8-inch powered subwoofer with a built-in 100-watt amplifier. The PSW108 has a frequency response from 40 Hz to 300 Hz. A adjustable volume control is provided to set the subwoofer’s bass level.
This subwoofer has both line-level and speaker-level stereo inputs with loop-through connections for both. The line-level inputs and outputs are female RCA connectors. The speaker level inputs and outputs are spring-loaded press-down terminals.
The subwoofer is powered from a 120 VAC source and contains automatic power switching circuitry. The auto-power feature will turn on the subwoofer’s amplifier when an audio input signal is detected. The amplifier will power down a few minutes after the audio input signal stops. The automatic power feature can be switched off to have the subwoofer’s amplifier powered constantly.
The adjustable crossover frequency control sets the upper frequency range of the subwoofer. It can be adjusted 40 Hz to 140 Hz to suit the lower frequency capabilities of the other speakers in the system. A crossover bypass switch is included to extend the high-end frequency response of the subwoofer to approximately 350 Hz. The subwoofer phase switch controls the speaker’s polarity and can be set to match the phase of the other speakers in the system for the loudest bass.
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