Lanzar Car Subwoofer Audio Speaker - 10in Black Non-Pressed Paper Cone, Die Cast Aluminum Basket, 4 Ohm Impedance, 1000 Watt Power and Rubber Surround for Vehicle Stereo Sound System - DCTS104 1000 WATT POWER: This car subwoofer has a power of 500 Watt RMS to 1000 Watt peak that will produce high sound resonance. It also has 40 oz. x2 high density barium ferrite magnet, silver push-in terminals and 4 Ohm impedance BUTYL RUBBER SURROUND: Made entirely of massive butyl rubber surround for durability. Designed with this non-fatiguing rubber suspension to keep equipment safe. The overall diameter is 10.83" which is a standard size for most cars NON-PRESSED PAPER CONE: It is a clean-cut car subwoofer that boasts a 10in black non-pressed paper cone. It will enhance car stereo by producing a powerful audio and keep equipment safe at the same time ALUMINUM VOICE COIL: The speaker subwoofer comes with a 2 or 51mm high-temperature aluminum voice coil to resist corrosion. It has a diecast aluminum basket as well, with a frequency response of 35-2.2kHz and sensitivity of 892dB (1w/1m) 5.47 MOUNTING DEPTH: Easy to install with its 5.47 mounting depth and fits most audio system for cars, boats or RVs. Included are the necessary cables, installation template and manual