Quad 6.5 -inch 1, 600 Watt Max Power Front-firing Loaded Subwoofer Enclosure ^^ Compatible with 2005-2021 Nissan Frontier Crew Cab Trucks ^^ Features x4 Skar Audio EVL-65 D2 (dual 2-ohm) 6.5" 400 Watt Max Power Subwoofers (1, 600 Watts Max Total) ^^ Subwoofers Come Loaded and Pre-wired to a 2-ohm Final Impedance Load at Each Terminal Wiring Cup ^^ 1-ohm Final at Amplifier ^^ Deep & Responsive Bass Output ^^ Finished in a Premium Automotive Grade Black Trunk-liner Carpeting