Check out the new Punch PM1000X5 "marine grade" amplifier. - Marine grade two part epoxy coating on circuit boards - Marine grade stainless steel hardware
RMS Power Output 75 Watts x 4 + 150 Watts x 1 @ 4-Ohm 125 Watts x 4 + 300 Watts x 1 @ 2-Ohm Subwoofer Only: 500 Watts @ 1-Ohm