With an ultra-shallow enclosure design and powerful sound output, the R-Series Shallow Preloaded Subwoofer Enclosures give you the best of both worlds in size and sound. Features: Optimal sealed cabinet quality Aluminum Dust Cap Neodymium Magnet Alpine Gen2 DD Linear Magnetic Circuit CARB compliant ¾” MDF construction Premium Alpine embroidered black carpet Alpine-branded terminal cup Pre-installed steel mesh grille Includes a 12” R-Shallow Subwoofer (RS-W12D4) Rubber, modular stackable foot design What's in the Box: Sealed Cabinet with (1) 12” R-Series Shallow Subwoofer Mounting Brackets Owner’s Manual Warranty Information Online product registration information Tech Specs: Dimensions: 26.5” W x 5.25” H x 17” D 600W RMS Power Handling Frequency response: 26Hz – 200Hz Dual 4Ω voice coils wired in parallel for a 2Ω load (compatible with S-A60M or R-A75M) Nominal Impedance: 2Ω Voice Coil: 4”(101.6mm) Designed for Tight Spaces Now you don’t have to choose between bass and space! Alpine’s R-Series Shallow Preloaded Subwoofer Enclosure measures at a minimal 5.25” deep to deliver a loud and fun sound in most vehicle applications. Rubber “feet” are adjustable in height to accommodate uneven vehicle floors. Extreme Output Don’t let the size fool you – the enclosures feature the same motor movement (20MM of 1-way excursion) as the full-size R2-Series Subwoofers for extreme output in a shallow woofer design. At the heart of the R-Series Shallow Subwoofers is an oversized 4-inch voice coil that houses the lightweight and powerful neodymium magnet for 600W RMS of power handling.

• Key Feature: The next generation of sound performance is here with the new R-Series Halo Preloaded Subwoofers featuring the new R-Series “R2” subwoofers for more accurate and authoritative bass.
• Key Feature: Unique ProLink Design – ProLink is unique to Alpine and allows you to link two R2-SB12V enclosures together using an optional KTX-H10 linking kit to create a dual subwoofer enclosure.
• Key Feature: Stand Out in the Crowd – Drawing inspiration from the sleek, tapered lines and clean silver finish of the Alpine Halo display, the R2-SB12V shares the same unique, curved edges outlined by a silver trim and a metallic front baffle for a matching system aesthetic.
• Key Feature: Improved Performance – The new R-Series subwoofers now feature larger, double-stacked magnets that contribute more motor force for deeper bass and tighter bass control compared to the previous generation.