Alpine Swr-1243d 12-Inch 1800 Watt Type R Car Subwoofer with 300-600 Watt Rms

Brand New Alpine SWR-1243D 12" 1800 Watt Type R Car Subwoofer with 300-600 Watt Rms Features: Alpine SWR-1243D 12" Dual 4 ohm Type R Subwoofer Peak Power Handling: 1800 watts RMS Power Handling: 300-600 watts Kevlar reinforced pulp cone woofer 2-Piece Structural Parabolic diaphragm design Injection molded Santoprene rubber surround Alpine exclusive High Amplitude Multi-Roll (H.A.M.R) surround for impressive excusrion and clean, accurate bass FEA Optimized progressive NOMEX spider Radial vented VC head sink Concealed mount gasket system Reinforced layer spider integration tinsel leads Oversized 2-1/2" Voice coil 4-Layer dual voice coil design Voice coil made from 180°C high temperature wire on spiral cut aluminum former Single-piece cast aluminum frame with Alpine Patent Pending Airflow Management System for efficient cooling Airflow Management system controls the temperature of the voice coil by directing the air across the heatsink One sided push terminals make installation and wiring fast and simple Each terminal accepts up to 8 AWG wire for high power signal transfer Concealed gasket mounting system hides the screw holes and makes for a clean install Integrated grill technology allows for a seamless installation of a grill US Patented Compound Radius Curve (CRC) design with integrated short sleeve configuration CRC Machined motor structure creates a symmetrical magnetic field for less distortion and improves power handling High-power, double-stacked strontium magnet structure Newly redesigned for a 20% depth reduction Frequency response: 24-200 Hz Sensitivity: 83 dB Sealed Box Volume: 0.65 - 1.25 cubic feet Vented Box Volume: 1.0 - 2.0 cubic feet