Monoprice offers its Monoprice 150-watt 12" Powered Subwoofer
in Black, model no. 9723, for $108. Coupon code "TGIF20" cuts that to $88
. With free shipping
, that's the lowest total price we could find by $42. It features 200 watts peak power, adjustable lowpass crossover, and a 50Hz to 250Hz frequency response.