The R2-DB8V-TRK features two Alpine R2-series Subwoofers and Kevlar-reinforced pulp cones and rubber high amplitude multi-roll (HAMR) surrounds for dependable performance at high volume levels. The Enclosure handles up to 750 W RMS so you'll get the solid bass you're looking for and is wired for a 2 ohm load, making amplifier selection simple. The Enclosure's side-firing ports use your truck's interior to boost the lows, giving you deeper bass at higher volume levels. The rugged 5 / 8" MDF Enclosure is clothed in black carpet covering that combines toughness and good looks, and a central metal pro-link bracket that lets you adjust the Enclosure's total width from 40- 51" to fit most full-sized trucks, plus Jeep Gladiators and 4-door Wranglers. An integrated amplifier mounting tray optimized for Alpine's mono sub amps gives you a package designed to fit under the rear seat of your truck, and its EZ change twist-lock grille system gives you speaker protection options to coordinate through your truck's interior. Adjustable mounting feet ensure a secure fit.