Kicker 11DX1000.1 Mono subwoofer amplifier — 1000 watts RMS x 1 at 2 ohms at Crutchfield
Amazon.com: Kicker TL7T Single Square 600 Watt RMS 12 Inch 2 Ohm Solo Baric Subwoofer with Thin Enclosure and Big Bass for Car Audio Stereo Systems, Black : Electronics
Kicker 44CVX154 CompVX Series CVX154 15" Dual 4 ohm 2000W Max Subwoofer 1000 RMS 713034081548 | eBay