The Pyle Hydra amp will power all of your speakers whether on the dock, in your boat or by the pool - and best of all, it"s completely waterproof. This 8-channel, 3000-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 mode, or double the power by bridging the inputs. Additional features include variable electronic crossover network, bass boost, and gain adjustment for total control over your sound. Digital LED level indicators let you know everything is operating correctly. Built-in system protection includes thermal, overload, and short circuit protection to ensure you and your system stay safe. Runs on 12 volts DC.