Lanzar 8 Inch Car Subwoofer - For Audio Stereo Sound Speaker System with Non-Pressed Paper Cone, Die Cast Aluminum Basket, Dual 4 Ohm Impedance, 800 Watt Power and Rubber Surround - DCT84D (Black) 800 WATT POWER: This car subwoofer has a power of 400 Watt RMS to 800 Watt peak that will produce high sound resonance. It also comes with silver push-in terminals and dual 4 Ohm impedance 8 PAPER CONE: A clean-cut car subwoofer that boasts 8 inch black non-pressed paper cone. It will enhance car stereo by producing a powerful audio. It also has 40oz x2 high density barium ferrite magnet 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 8.57" which is a standard size for most cars ALUMINUM VOICE COIL: The voice coil in this speaker subwoofer is a dual 2 or 51mm high temperature aluminum to resist corrosion. Also has die cast aluminum basket with a frequency response of 40-2.5kHz and sensitivity of 862dB (1w/1m) 4.41 MOUNTING DEPTH: Easy to install with its 4.41 mounting depth and fits most audio system for cars, boats, motorcycles or RVs. Included are the necessary cables, installation template and manual