10 Adjust sound
The following operations are applicable to all supported media.
Button Function
Rotate to increase or decrease the volume level.
Press to mute or restore sound.
Press to enable or disable the maximum volume.
Press and hold to enable or disable the Dynamic Bass Boost (DBB) effect.
Press repeatedly to select a sound equalizer.
1 Press and hold to activate the setup of customized sound equalizer.
2 Press repeatedly to select an option: [BAS] (bass), [TRE] (treble), [BAL] (balance), or [FAD] (fader).
3 Rotate 
to adjust the setting.
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