8" Inch Quad Port Subwoofer Enclosure Box / Underseat Frontfire

4 PORTS: 4-hole 8-inch openings allow for an ideal fit for 4 subwoofers CRISP SOUND: Underseat front fire capabilities feature louder and crisper sound DURABLE: Bed liner material provides durability and protection LOUD BASS: Enclosure's design makes for an ideal spot for loud bass playing IDEAL FITl Engineered to fit Ford F150 Super Crew from 2009 to current and F250/350 Super Duty from 2017 to current; Tuning frequency: 35 hertz; Air space: 0.8 cubic feet; Mounting depth: 11.25 inches Experience the high-quality sound your subwoofers deserve with the QPower 8-Inch Quad Ported Subwoofer Box. This casing was ideally designed to fit Ford F150 Super Crew Trucks from 2009 to current and F250/350 Super Duty Trucks from 2017 to current. The enclosure features 4 8-inch ported openings for an ideal fit. The cover is designed for the utmost durability, so you can enjoy musical longevity. Constructed from a strong bed liner material, this enclosure will protect your subwoofers from any unnec