JL Audio MediaMaster 100s, Owner'S Manual

General Control Functions

Below is a list of general commands, including many common operations. The 
functionality of each control will vary depending on the current source and  
menu selected. 
 

Source/

Power

Use this button to turn ON or OFF and to access the source selection menu.
• Press to turn the unit ON
• Press to display the 

SOURCE: Select

 menu

• Press and hold to turn the unit OFF

Volume/

Select

Use this knob to adjust volume levels, navigation of menus and to make selections.
• Rotate to adjust volume level
• Press and hold to access 

Audio Zone Levels

 and Zone 2/3 audio setting menus

• Rotate to scroll through options
• Press to choose/enter selections

Back/

Menu

Use this button to go back/return and to access the menu options.
• Press to go back or return to the Now Playing Screen (AM/FM/WB/AUX)
• Press to access main menu options (SiriusXM®/USB/Bluetooth®)

Favorites

Use this button to save, view or edit preset channels (up to 18).
• Press and hold to store a channel (AM/FM/WB/SiriusXM®) as a preset (star  
  will turn solid)
• Press to view your list of stored presets and the 

Favorites Edit: Select 

menu.

Settings

Use this button to access Zone 1 audio settings and main system setting menus.
• Press to access Zone 1 audio settings
• Press and hold to access the 

System Settings: Main Menu

Forward

Use this button to make a forward selection.

Press to: 

•Tune in the next frequency (AM/FM/WB) or channel (SiriusXM®) 
• Select the next track (USB/Bluetooth®)

Press and hold to:

• Tune to the next channel (AM/FM/WB) 
• Enter 

Channel Browse

 mode (SiriusXM®) 

• Fast-forward (USB)

Backward

Use this button to make a backward selection.

Press to:

• Tune in the previous frequency (AM/FM/WB) or channel (SiriusXM®)
• Select the previous track (USB/Bluetooth®)

Press and hold to:

• Tune to the previous channel (AM/FM/WB) 
• Enter 

Channel Browse

 mode (SiriusXM®) 

• Fast-rewind (USB)

Mute/

Pause/ 

Resume

Use this button to mute audio or pause/resume your music.
• Press to mute audio (AM/FM/WB/SiriusXM®/AUX)
• Press to pause or resume the current selection (USB/Bluetooth®)
• Press and hold to access the 

USB: Play Options

 menu (USB)

Audio Zones

Audio signals can be sent to your aftermarket amplifiers/equipment via (4) stereo 
pairs of low-voltage, line-level RCA outputs. Each output pair delivers full-range, low-
distortion audio, arranged into four zones. Depending on your equipment and vessel, 
this will allow you to group speakers of an area together for flexibility and control of 
audio levels at separate zones. For example, you may prefer to reduce the listening 
level in an interior cabin, while keeping a louder audio level on the main deck.