The 2nd-Gen R-Series Subwoofers now feature larger, double-stacked magnets that contribute more motor force for deeper bass and tighter bass control from the subwoofer cone compared to the previous generation. An integrated Faraday ring minimizes distortion for cleaner bass output. A Kevlar-treated cone ensures durability in the subwoofer for reliable performance, even at high volumes. A new polypropylene/ceramic composite dust cap ensures rigidity while also providing incredible internal damping (vibration absorption) to smooth out the bass response and reproduce tight bass. This premium, unique material also has higher heat reliability that ensures non-stop bass performance. The 2nd-Gen R-Series Subwoofers contain a Dual Voice Coil (DVC) with easy configuration jumpers that allow for flexible applications. A new “EZ-Change” twist-lock grille mounting system makes it easy to install and remove an optional grille without mounting screws for additional protection to the cone. Specifications: Dual Voice Coil (DVC) Subwoofers with Configuration Jumpers Polypropylene/Ceramic Composite Dust Cap Kevlar Reinforced Pulp Cone High-Performance subwoofers Twist-Lock Grille Mount System High-Amplitude Multi-Roll (H.A.M.R.) Surround Large Double-Stacked Magnets 8” R2-Series DVC Subwoofer with Cosmetic Trim Ring 2 Jumper Wires for DVC Configuration 350W RMS 1000W Peak Power Handling Frequency Response: 30Hz-200Hz Sensitivity (1W/1m): 83.5dB Nominal Impedance: 2Ω + 2Ω Voice Coil: 40mm X-Max: ±12mm Magnet Weight: 56oz Mounting Depth: 4-3/8” (118mm) Cutout Size: 6-15/16” (176mm) Push-Type Speaker Terminals (Up to 8AWG Wire Size) CTA-2031 Compliant