12in Car Subwoofer Opti-Drive DVC - Aluminum Cone Structure and Basket, Dual 4 Ohm Impedance, 2200 Watt Power and Butyl Rubber Surround for Vehicle Audio Stereo Speaker Sound System - OPTI1244D 2200 WATT POWER: This car subwoofer has 1100 Watts RMS / 2200 Watt peak power that will produce high sound resonance. It also has 65 oz x 3 high density barium ferrite magnet, frequency response of 26-800Hz and dual 4 Ohm impedance BUTYL RUBBER SURROUND: Made with this non-fatiguing butyl rubber surround to keep equipment safe. Designed with such structure for durability, unprecedented loudness and bass clarity ALUMINUM CONE: It is a clean-cut car subwoofer that boasts aN Aluminum Alloy cone structure. It will enhance car stereo by producing a powerful audio and keep equipment safe at the same time DUAL VOICE COIL: The speaker subwoofer comes with a 3 high-temperature aluminum dual voice coil to resist corrosion. It has a custom tooled die-cast aluminum basket as well for a booming high-end performance 7.7-8 MOUNTING DEPTH: Easy to install with its 7.7 to 8 mounting depth and fits most audio system for cars, boats or RVs. Included are the necessary cables, installation template and manual