Kicker 43CXA300.4 CX Series 4-channel car amplifier — 40 watts RMS x 4 at Crutchfield
KICKER CX 1800W Class D Digital Mono Amplifier with Variable Low-Pass Crossover Black 46CXA18001 - Best Buy
Kicker 46CXA8001T Mono Sub Amplifier w/ M10AK4B Sub & Amp Wiring & Hardware Kit
Car Subwoofer and Amp Combo: Kicker Subwoofer 12" inch 4-Ohm 750W, Kicker 12” Square Chrome Subwoofer Grille with LED lighting, Kicker 600 Watt Class D Amplifier, Kicker Amplifier Power Kit - Walmart.com