Velodyne offers its Velodyne Impact 165-watt 12" Subwoofer in Black Ash Wood Grain, model no. 80-IMP12B, for $499. Coupon code "40OFFIMPACT" cuts it to $299.40. With free shipping, that's $200 off and the lowest total price we could find. It measures 15.1" x 14.2" x 18.9" and features 165 watts of RMS power, a 29Hz to 140Hz frequency response, and 2" dual-layer copper-wound voice coil.

Also available is the Velodyne Impact-Mini 180-watt 6.5" Subwoofer in White Vinyl Gloss, model no. 80-IMPMINI-SERIES, for $275.40 with free shipping via the above coupon. That's $184 off and also the best deal we could find. It measures 10" x 10" x 12" and features 180 watts of RMS power, a 38Hz to 140Hz frequency response, 6.5" active and 8" passive andonized aluminum woofers, and 2" copper-wound voice coil.