Dual 10-inch 1, 600 Watt Max Power Sealed Down-firing Loaded Subwoofer Enclosure ^^ Compatible with 1999-2006 Chevrolet Silverado/GMC Sierra Extended Cab Trucks ^^ Features x2 Skar Audio VD-10 D4 (dual 4-ohm) 10" 800 Watt Max Power Subwoofers ^^ Subwoofers Come Loaded and Pre-wired to a 1-ohm Final Impedance Load at the Terminal Wiring Cup ^^ Deep & Responsive Bass Output ^^ Finished in a Premium Automotive Grade Black Trunk-liner Carpeting