Electronics Expo offers the Polk Audio PSW111 8" 150-watt Powered Subwoofer
in Black, model no. AM1145A, for $299. Coupon code "grandslam" cuts it to $122.97
. With free shipping
, that's tied with our mention from three weeks ago and the lowest total price we've seen. (It's also a current price low by $55.) It features a 38Hz to 250Hz frequency response, 300 watts of peak power, and 150 watts of continuous average output.