Best Buy offers the Kicker 250-watt Class D Mono Amplifier with Comp 12" Subwoofer and Enclosure for $129.99 with free shipping. That's tied with our December mention, $160 off list, and the lowest price we could find. It features 125 watts RMS at 4 ohms, 250 watts RMS at 2 ohms, and KickEQ bass boost.