Polk Audio db840 8-Inch Single Voice Coil Subwoofer (Single, Black) - $50.45

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  • 8-inch single-coil subwoofer loudspeaker (single)
  • Power handling: 180 watts continuous, 360 watts peak
  • Frequency response: 30-200 Hz
  • Marine certified for use in boats of all types
  • 1-year limited warranty