Subaru Outback 2017 Owner's Manual page 102

SETUP
iPod SETTINGS
1.
Display the "Audio Settings (Audio Settings)" screen.
2.
Select
iPod Sound Input
3.
Select a screen button for the desired setting.
AUTOMATIC SOUND LEVELIZER (ASL)
The system adjusts to the optimum volume and tone quality
according to vehicle speed to compensate for increased
vehicle noise.
1.
Display the "Audio Settings (Audio Settings)" screen.
2.
Select
Automatic Sound Levelizer
Levelizer).
3.
Select (High),
High Mid
(Off).
100
(iPod Sound Input).
(Automatic Sound
(Mid), (Low), or
Low Off