Sony NW-ZX2 Manual page 111

Enjoy music by either setting the optimum sound quality with a single touch of a
button, or set the sound quality to your own preferences.
To set the sound quality easily with a single touch
Turn on the [ClearAudio+] function.
To set the sound quality yourself
Change the settings of various functions.
Hint
[88] How to Use
Setting the sound quality with a single touch
Turn on the ClearAudio+™ function to enjoy audio with digital signal processing
technology effects.
1. In the Home screen, tap
2. Tap [ClearAudio+] to put a checkmark in the checkbox.
Note
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[Sound Settings] is not applied if [ClearAudio+] is turned on.
Settings Sound Settings
[Sound Settings] is not applied if [ClearAudio+] is turned on. Turn off [ClearAudio+]
.