Sony PHA-3 Help Manual page 80

5. Rotate the power/volume knob clockwise to turn on the headphone amplifier.
The POWER/CHG indicator flashes in green and then lights up.
Rotate the power/volume knob further clockwise to turn up the volume.
6. Start playback on the connected audio device.
When playing High-Resolution Audio format files on your computer with the headphone amplifier, download and
install "Hi-Res Audio Player."
7. Rotate the power/volume knob to adjust the volume.
When the volume remains low
Depending on the headphones, the volume may remain low, even if you turn the volume up to the max volume.
In this case, turn off the headphone amplifier and set the GAIN select switch to HIGH, then turn on the headphone
amplifier again. In normal use, the GAIN select switch should be set at NORMAL.
Hint
When the headphone amplifier is turned on, you can check the battery level by the number of times that the
POWER/CHG indicator flashes in green.
Flashes three times: Substantially charged
Flashes twice: Half charged
Flashes once: Battery level is low. It is necessary to charge the battery.
Always flashing: It is necessary to charge the battery. If you continue to use the headphone amplifier without charging, it
will turn off automatically.
Note
When using balanced connection with headphones that have low impedance (less than 16 ohms), the limiter prevents
excessive output, which may cause the sound to be cut off. In this case, turn down the volume of the headphone
amplifier.
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