Low Profile Marine Subwoofer System - 1000 Watt 8 Inch Slim Active Waterproof Amplified Bass Speaker - Underseat Mount Audio Sound Amplifier Box For Small Boat, Marine Vehicles - Lanzar AQTB8 (White) 1000W POWER: Lanzars 8 Marine Subwoofer System offers a max power of 1000 watts. It introduces a low-profile amplified woofer low enough to easily fit below the seat of your car or boat making it a great addition to your marine music audio system HIGH / LOW PASS FILTERS: The integrated amplifier in this super slim active sub woofer features both high and low pass crossovers so you can tweak your bass to your preference, as well as a control for adjusting the input sensitivity from 0.2V to 3V UNIVERSAL COMPATIBILITY: Both high (speaker level) and low (RCA type) level inputs are present making this a universal solution for use w/ any head unit or other input sources. Includes a remote level control for further flexibility and convenience WATER-RESISTANT: The professional compact square underseat loudspeaker system features a marine grade waterproof construction making it safe to be installed and used in places where moderate water splashes occur such as in marine vehicles BUILT-IN SAFETY FEATURES: Equipped with shortcut, overload, and thermal protection to keep this speaker and connected devices functioning properly and safely. It also features green and red LED light as power status and protection indicators 8'' Slim Marine Woofer RCA Low Level Input High Level Input Green and Red LED Power Status Indicator Remote Level Control Phase Shift Switch : 0 or 180 Low Pass Filter (50-150 Hz) Soft Delay Remote Turn-On Thermal , Short and Overload Protection Circuits 14.5''(D) x 9.5''(W) x 3''(H)