Polk Audio DSW Micropro 4000 Subwoofer Speaker (Single, Black)
Subwoofer, Main Speaker - 12" - 1,200 W - Passive Speaker
12" driver with vented, cast aluminum basket * 12" x 12" fluid-coupled passive radiator acts as a port to reinforce low frequencies * 1200-watt RMS amplifier * frequency response 19-140 Hz (-3dB) * video-shielded (prevents magnetic distortion on tube TVs) * Polk Room Optimizer delivers punchy bass regardless of the subwoofer's placement in your room * AutoPRO microphone samples sound in your room and adjusts for optimal response *
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