**[Newegg (via eBay)](http://www.passwird.com/links/Ap2MV1)** has the Klipsch Sub-12HG Synergy Series 12-Inch 300-Watt Subwoofer for **$179.99** with free shipping. Positive customer reviews.

* Precision matched BASH amplifier delivers 650 booming watts of dynamic power (300W RMS)
* Significantly extends the bass range, dynamics & performance of virtually any audio or home theater system

Review: [Amazon](http://www.passwird.com/links/vrN6qH)