DS18 SLC8S Car Subwoofer Audio Speaker - 8" in. Paper Glass Fiber Cone, Black Steel Basket, Single Voice Coil 4 Ohm Impedance, 400W MAX Power and Foam Surround for Vehicle Stereo Sound System WATT POWER - 8-Inch Car Audio Subwoofer offers a 200W RMS & peak power of 400W Max w/ 4ohm impedance. Lets you pump out some great low-frequency bass volume to enhance the party vibe making it a great addition to your Car / SUV music audio system FOR ENHANCED SOUND-The Select line of subwoofers are a great addition to your car stereo sound system. No sound system is complete without the perfect subwoofer for complimentary bass so don't deprive your Vehicle from the absolute best sound you can get! TREATED FOAM SURROUND - Made entirely of specially treated foam surround for durability. Designed with this non-fatiguing suspension to keep equipment safe. It is a clean-cut car subwoofer that boasts a non-pressed paper cone and black steel basket SUPERIOR POWERFUL SOUND-The bass speaker features a 8-inch high-quality paper with glass fiber cone. The 38-oz magnetic structure and 2-inch black aluminum 4 layer voice coil w/ power and achieve a frequency response of 50 Hz to 4.5 kHz. Sensitivity 84dB INSTALLATION/PLACEMENT - The car subwoofer can be mount inside a box / enclosure. The sub has an Overall Diameter 8.43", Baffle Cutout Diameter 7.2", and Mounting Depth 3.85"