R Series 8″ Subwoofer Alpine’s new 2nd generation R-Series Subwoofers feature enhanced sound performance in an exciting new aesthetic. With a larger motor structure featuring double-stacked neodymium magnets and an integrated faraday-ring results in a deeper, cleaner and tighter bass while the all-new Kevlar-treated cone ensures this extra performance is reliable – even at higher volumes. The new EZ-Change twist-lock grille mounting system makes subwoofer installation easier than ever-before. The optional grille (KTE-12G), exudes a tough look with the benefit of added protection. Quality and Performance unrivalled in the industry, Alpine’s new 2nd Generation R-Series continues to be the benchmark in sound quality for the audio enthusiast. Features Fill 1 Dual Gap Voice Coil Rigid Dust Cap Large Double-Stacked Neodymium Magnets High-Amplitude Multi-Roll Surround Heavy-gauge push terminals Peak Power Handling: 1000W RMS Power Handling: 350W Nominal Impedance: 4ohms+4ohms Frequency Response: 30Hz-200Hz Specifications Fill 1 Peak Power: 1000W RMS Power: 350W Frequency Response: 30Hz – 200Hz