Garmin® JL Audio® 6 Channel AP Amplifier. With this tough and ultracompact amplifier, you can enjoy every note from every part of your boat. This staggered-power 6 channel amplifier can power up to a maximum of six pairs of speakers or four pairs of speakers and one subwoofer. Built-in LCD display for manual control. Ignition protected and IP67-rated (excluding cables). Download the Garmin audio app for the easy tune feature, which streamlines amplifier setup to ensure superior sound quality and system protection.