BOSS Audio Systems MR1000 Marine Audio Stereo Amplifier - 1000 High Output, 4 Channel, Class A/B, 4 Ohm Stable, High/Low Level Inputs, Mosfet, Bridgeable, Weather Resistant, Full Range, Subwoofer Ride the waves with the Boss Audio MR1000 Class A/B 4-Channel Full Range Weatherproof Marine Amplifier. This powerful 2-Ohm stable amplifier features 1000 Watts Max Power with a MOSFET power supply to get your boat rocking. Customize the sound with Fixed High Pass Crossover, Variable Low Pass Crossover and Bass Boost. Turn up the Bass and feel the vibes with the Remote Subwoofer Control. Bridge channels for more power and flexibility. The MR1000 Amplifier features a unique rubber door, which tightly seals all control panel openings and weatherproof connectors to prevent corrosion and provide protection against the elements. Surf your playlists with the Boss Audio MR1000. 4 Channel Weather Resistant Amplifier - 1000 Watts, Full Range, Class AB, 2 Ohm Stable, RCA Inputs, Bridgeable, Great For Use In ATVs and Boats Crank it up with the Boss Audio Systems MR1000 Class A/B Full Range Weatherproof Marine Amplifier. This 4-Channel Amplifier features 1000 Watts Max Power and MOSFET power supply. Customize the sound with Fixed High Pass Crossover, Variable Low Pass Crossover, Bass Boost and Remote Subwoofer Control. Bridge channels for more power and flexibility. The MR1000 Amplifier features a unique rubber door, which tightly seals all control panel openings and weatherproof connectors to prevent corrosion and provide protection against the elements.