PYLE PLMRA200 2 Channel Waterproof Amp Marine/Car Amplifier.200 Watts RMS to 400 Watts Output Power.Variable High/Low Electronic Crossover Network.Gold Plated Speaker Terminals & Low Level RCA Inputs - High Level Inputs.Full Manufacturer's 1 Year Warranty This Pyle Hydra amp will power your speakers on the dock, in your boat, or by the pool – it’s completely waterproof. This 2-channel, 400-watt bridgeable marine amp takes both high and low level inputs, so it’s compatible with a variety of head units and sources. Use in stereo, or double the power by bridging inputs. Remote turn/on off makes controlling this amp a breeze. Gold plated RCA inputs means this amp won’t be a weak link in your setup. For protection, count on the heavy duty aluminum alloy heatsink to prevent overheating, as well as thermal, overload, and short circuit protection. Comes complete with mounting screws and hardware. Runs on 12 volts DC.