Amazon.com has the Energy ESW-C10 10-Inch 400 Watt Subwoofer for $199.94 with Free Shipping.
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- 10-Inch Injection-molded woofer with patented Ribbed Elliptical surround suspension for greater output & lower distortion n
- 400 watt Dynamic / 150 watt RMS custom matched amplifier for clean and deep bass down to 32hz n
- Rigid, low-distortion MDF enclosure with Black Ash Finish and Black High Gloss trim n
- Variable Crossover and Phase Control to blend with any speakers, low-level & speaker level inputs for connection to any receiver , amplifier or TV n
- Front-firing, down-ported design for maximum impact and reduced port turbulence & distortion