Rockville RQ12TB Single 12" Triangle Ported Subwoofer Box, BedLined, 2.2 Cu.Ft. Air Space, 35Hz Tuning, 3/4" MDF, Spring-Loaded Terminals, for Car Audio Systems

Rockville RQ12TB Single 12" Ported Subwoofer Box, BedLined, 2.2 Cu.Ft., Durable MDF, Space-Saving Triangle Design, High-Quality Terminals, for Car Audio Enthusiasts

Rockville Destroyer 12D2 2000W Peak Subwoofer Dual 2-Ohm, Kevlar Cone, Cast Aluminum Basket, High-Excursion Bass, for Car Audio Enthusiasts

Rockville dB16 8000W Mono 2-Ohm Car Amplifier, High-Speed MOSFET, Adjustable 12dB Crossover, LED, Remote Sub Control, Perfect for Car Audio and Subs