JL Audio AP 4 Channel Compact Marine Amplifier - AP300/4 [010-03429-00]AP 4 Channel Compact Marine Amplifier AP300 4 POWER THE MOMENT With these tough and ultracompact amplifiers, you can enjoy every note from every part of your boat. Efficient Class D design Built in LCD for manual control Ignition protected and IP 67 Rated (excluding cables) Easy tune feature 300 Watt 4 Channel Amplifier This 4 channel amplifier can power up to a maximum of four pairs of speakers or two pairs of speakers and one subwoofer. Easy Tune