The new R2-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. ProLink is unique to Alpine and allows you to link two R2-SB10V enclosures together using an optional KTX-H10 Linking Kit (sold separately) to create a dual subwoofer-enclosure. Drawing inspiration from the sleek, tapered lines and clean silver finish of the Alpine Halo Display, the R2-SB10V shares the same unique, curved edges outlined by a silver trim and a metallic front baffle for a matching system aesthetic. The ported enclosure design features an optimized vent and rounded internal port edges that maximize the output performance of the subwoofer. Made from 3/4" medium density fiberboard (MDF) with internal edge bracing, the R2-SB10V is sturdy with a rugged, yet stylish black carpet cover and brushed aluminum finish on the metallic front baffle. The R2-SB10V includes a preloaded R2-Series R2-W10D4 10" subwoofer that's turned to 36Hz for optimized performance with Alpine's R-Series sound system line. Dual 4Ω voice coils are wired in parallel for a 2Ω load that's compatible with the R2-Series R2-A75M Mono Power Amplifier. Key Features Groundbreaking Alpine Halo Design Brushed aluminum finished metallic front baffle 16” W x 12.6825” H x 14.5” D Dual 4Ω Voice Coils Wired in Parallel for a 2Ω Load (Compatible with R2-A75M) 12 Gauge OFC Speaker Box Wire Binding Post Terminal Cup Threaded Subwoofer Mounting Inserts (for reversible subwoofer orientation) 2Ω Impedance Frequency Response: 26-200Hz Vented Enclosure Tuning Frequency: 36Hz Sensitivity 82.3 dB ProLink ported enclosure design Optimal Sound Performance 750W RMS Power Handling Includes preloaded R2-W10D4 10” R2-Series subwoofer CARB compliant 3/4-inch MDF construction Premium black carpet Silver Alpine embossed side logo badge