Amazon.com has a Polk Audio PSW125 12-Inch Powered Subwoofer for $210.99 with Free Shipping.
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- A single 12-inch subwoofer with compression circuitry to limit distortion at earth-shaking volume levels n
- Equipped with one 12-inch dynamic balance composite woofer driver n
- Features laser-based Klippel measurement technology for improved linearity and deep, precise sound n
- Frequency Response: 32Hz – 225Hz n
- Peak power handling: 300 watts (150 watts continuous)