Stinger TXTRB10 Underseat 10-inch Subwoofer Enclosure For Full-size Trucks And Other Vehicles - Built tough and made to ?t many under-seat truck installations, this 10” bass enclosure offers a quick and easy way to add a high-powered subwoofer solution to your audio system. Phoenix Gold designed a subwoofer specifically for this enclosure to maximize the performance and deliver deep, accurate bass. The enclosure also works well behind seats as a footrest, over-center humps, and in hatchbacks. Extreme Bass Push your trucks audio to the limit. Engineered to overcome the lack of space hurdle and adds BIG BASS in trucks where space is a premium. Save-Saving Fit Add some more bass to that wasted space. The enclosure works well behind seats as a footrest, over-center humps, and in hatchbacks. Weather-Resistant Designed to withstand harsh outside elements including water, dirt, dust and debris. Stinger TXTRB10BB Add-on Extention Port For 10-inch Subwoofer Enclosure For Full-size Trucks And Other Vehicles - FOR SILVERADO/SIERRA/DENALI 2007-2019, F150 1999-2020, TUNDRA DOUBLE CAB 2018-2020, AND MORE Features: Roadkill-Armor Coat Permanent Heat Bonded EPM enclosure coating (Elastomeric Polyurethane Molecule) Weather-Resistant for harsh outdoor environments PowerBass ASA3-400.1 - 400 Watt x 1 @ 2-Ohm Amplifier - PowerBasss A/B Class mono block amplifiers combine our new clean low profile design that still has all the necessary features built into an economical package that puts power and control at your command. Features like a MOSFET power supply, RCA pre-amp out, and variable LPF electronic crossover make these ideally suited to add some punch to any system. Bundle also includes one Creative Audio Coozy, one 4-piece set of plastic pry tools, and one Stinger SS600XS 8GA Copper 600W Complete Wiring Kit, Blue.