Today only Vann's has the Energy 10" 225W powered subwoofer EW-100 (Black)
for 129.88 and FS and no tax for most.
Reviews are all good for this subwoofer and seems like a good price.
Link: http://www.vanns.com/shop/servlet/dealoftheday?a_c=showbestpric
Comparison Specifications
* 55W RMS rating; 225W peak power rating
* 10" down-firing woofer
* Variable crossover from 40Hz to 120Hz @24dB/octave
* Bass reflex design via rear-mounted port
Additional Specifications
* Frequency response: 29Hz to 120Hz 3dB
* Class A/B discrete MOSFET amplifier output
* 110dB SPL 1/8 space, 1m maximum sound output
* Fiber-composite cone
* Switchable phase: 0 or 180 degrees
* Matte-finish black vinyl
* Two line-level/LFE RCA phono inputs
* Two high-level speaker terminals
Dimensional Specifications
* Dimensions: 13.5" W x 15.5" H x 13.5" D
* Weight: 29 lbs
