Pyle Upgraded Hydra Marine Amplifier - Elite Series 400 Watt 2 Channel Bridgeable Audio Ampli - Waterproof, Dual MOSFET Power Supply, GAIN Level Controls, RCA Stereo Input & LED Indicator - PLMRA210BT

Pyle Model : PLMRA210BTElite Marine Bluetooth 2-Ch. AmplifierElite Series Waterproof Bluetooth Amplifier, Bridgeable 400 Watt 2-Channel Amp Features:2-Channel Audio Amplifier Built-in Bluetooth Receiver for Wireless Music StreamingBridge Mode AbilityDual MOSFET Power SupplyMarine Grade ConstructionWater Resistant & WeatherproofStereo / Bridge Mode Selection SwitchAdjustable Input GAIN Level ControlRCA (L/R) Input Connector JacksHigh Level Speaker Input ConnectorPower & Protection LED Indicator LightsSilver-Plated Speaker Output Terminal ConnectorsCrossover Frequency ControlAnti-Thump Delay CircuitryBuilt-in Thermal, Overload & Speaker Short ProtectionHeavy Duty Aluminum Alloy HeatsinkRemote Turn ON/OFFBluetooth Connectivity:Smart Auto Connect: Remembers Device Pairing InfoCompatible with All of Your Favorite Bluetooth Devices (iPhone, Androids, Smartphones, iPad, Tablets, etc.)Bluetooth Network Name: ‘Pyle Amp’Bluetooth Version: 2.1Wireless Audio Range: 25’+ ft.Technical Specs:MAX Power: 400 WattRMS Power: 200 WattAmplifier Class: ABMarine Grade Rating: IP-01Crossover Frequency Adjustable: 40 - 450HzFrequency Response: 10Hz - 30kHz +/-3dBInput Impedance: 10k OhmsInput Sensitivity: 250mV-1VMatching Speaker Impedance: 4-8 OhmsT.H.D.: