When youre buying an amp for marine use, you want it to do more than merely supply clean power to your speakers. You need an amp that will stand up to the rigors of the marine environment as well. Clarions APX280M 2-channel marine amplifier is built to handle the demands of off-shore life. Its circuit boards are specially-coated to resist damage from mold, mildew, and moisture, while the power, speaker, and RCA connectors are all gold-plated to impede corrosion.