From towing to travel, you depend on your truck to get you where you want to go, but can you rely on getting the best performance from your sound system? Now you can add deep, accurate bass in your truck without compromising valuable cabin space with the new R-DB8V-TRK Dual 8” Alpine Halo R-Series Preloaded Truck Subwoofer Enclosure with ProLink™ The enclosures were intentionally crafted to fit most full-size trucks. Two 8” subwoofers are preloaded into a compact enclosure for under the seat installation and linked with a ProLink™ bracket that can adjust from 51”-40”. Centered on the enclosures is an integrated amplifier mount tray that's optimized for Alpine's R2-A75M Mono Power Amplifier (sold separately). Rubber “feet” are adjustable in height to accommodate uneven truck floors. High-performance subwoofers are designed for the unique cabin environment of your truck. The ported subwoofer enclosures feature the next generation 8” R-Series subwoofers with Hi-Res Audio Playback. A more powerful motor creates deeper bass while Alpine's High Amplitude Multi-Roll (HAMR) Surround Technology allows the rubber cone to efficiently move air while staying cool for incredible accuracy. A new ceramic composite dust cap has higher heat resistance that ensures non-stop bass performance. Alpine's new Preloaded Truck Subwoofer Enclosures join the Alpine Halo Family with a premium, unmistakable design. The enclosure pulls design cues from the Alpine Halo Display with unique, curved edges outlined by a silver trim and a front link bracket cover with an Alpine logo badge. The 5/8” MDF enclosures are covered in a premium black carpet that will elevate the look of your truck. With two preloaded R2-W8D2 8” R-Series subwoofers that are tuned to 36Hz, R-DB8V-TRK is optimized to perform with Alpine's R-Series sound system line. Dual voice coils are wired in Parallel for a 2Ω Load that's compatible with Alpine's R-Series R2-A75M Mono Power Amplifier.