Pyle Hydra Marine Amplifier - Upgraded Elite Series 400 Watt 4 Channel Audio Amplifier - Waterproof, Dual MOSFET Power Supply, GAIN Level Controls, RCA Stereo Input & LED Indicator - PLMRA402

Supply - Marine Grade Construction - Waterproof Marine Rating IP-01 - Dual Adjustable Input GAIN Level Controls - Dual High Level Speaker Input Connectors - Dual RCA (L/R) Input Connector Jacks - Gold-Plated Speaker Output Terminal Connectors - Adjustable Input GAIN Level Control - Anti-Thump Delay Circuitry - Built-in Thermal, Overload & Speaker Short Protection - Heavy Duty Aluminum Alloy Heatsink - Power ON LED Indicator - Remote Turn ON/OFF