The Fusion Apollo MS-SRX400 Marine Zone Stereo is a compact single-zone marine stereo with a 2.7-inch optically bonded color LCD, built-in Wi-Fi and a 2-ohm stable Class D amplifier rated at 43 watts RMS x 2 into 2 ohms or 26 watts RMS x 2 into 4 ohms. Garmin positions it as a companion unit to the Apollo RA770.
Sources are AM/FM, Bluetooth, Apple AirPlay 2 and UPnP, and built-in DSP uses preconfigured profiles. An Ethernet port joins it to an Apollo stereo network, and stereo networking also works wirelessly. Line, subwoofer and RCA pre-outs allow an external amplifier to be added.
At 2.76 x 4.33 x 4.81 inches and 12 oz it fits small panels, and the front is rated IPX6 and IPX7 when properly installed. Software updates are delivered over the air through the Fusion-Link app, and the stereo carries a 3-year warranty.
