Sony TA-ZH1ES Manuel D'instructions page 25

3
Press INPUT repeatedly to select [PC (USB-B)].
[PC (USB-B)] appears in the display window.
4
Start "Hi-Res Audio Player" and play the music source.
For details about "Hi-Res Audio Player," see page 23.
5
Turn the volume knob to adjust the volume level.
Depending on the headphones, the volume may remain low. In this case, set GAIN to "H"
after tuning the volume down. In normal use, GAIN should be set at "L."
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