BEFORE STARTING THE UPDATE PROCESS, follow these steps to view which hardware and software version is currently in your MediaMaster® MM50: With the MM50 turned on, press and hold SETTINGS to access the System Settings: Main Menu.. View and Download JL Audio MediaMaster 50 owner's manual online. MediaMaster 50 receiver pdf manual download.
Hello, Has anyone figured out how to control the RGB lights and other settings on the JL Audio roof? The Media Master interface only lets you set sound settings. Related to sound settings, has anyone figured out how to increase the bass level to something that sounds better?. Read what Crutchfield customers have to say about the JL Audio MediaMaster 50 Marine digital media receiver with Bluetooth (does not play CDs).