Elite Series Waterproof Amplifier - 400 Watt 4-Channel Amp System, Dual MOSFET Power Supply

Features: - 4-Channel Amp System - Dual MOSFET Power 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 What's in the Box: - 4-Ch. Marine Amplifier - Audio Connection Cables Technical Specs: - Output Power: 100 Watt x 4 MAX - Amplifier Class: AB - Fuse Type: 20A - Input Gain Impedance Adjustment: 1 - 300mV - Frequency Response: 15 - 30kHz +/-3dB - Input Impedance: 10k Ohms (Low), 100 Ohm (High) - Input Sensitivity: 250mV (Low), 2.5V (High) - T.H.D.: <0.04% - Matching Speaker Impedance: 4-8 Ohms - Power Supply: DC 12V - Dimensions (L x W x H): 9.0'' x 7.9'' x 2.0'' -inches