Do you want to bring the party on board? Infinity's handsome M704A marine amplifier will add a lot of happy to your music, sending 70 watts RMS to each of four speakers. The amp could also power two speakers and a sub, in 3-channel mode. For even louder fun, you could bridge the amp to 2-channel mode and power a couple high-performance speakers with 200 watts RMS each. The amp features a coated circuit board and stainless-steel connectors that will stand up to the sun, salt, and spray.