Portable Headphone AmplifierPHA-1A

There is no sound.

  • This headphone amplifier supports digital input only. Analog input is not supported.
  • Check that the headphone amplifier and the audio device are connected correctly.
  • Check that the connected device is turned on.
  • Check that the headphone amplifier is turned on.
  • If the POWER/CHG indicator does not light up in green, charge the battery.
  • Turn up the volume of the connected device.
  • Turn up the volume of the headphone amplifier.
  • Connect the headphone plug firmly to the headphone amplifier.
  • Check that the connected headphones are 3-pole stereo mini plug.
    The headphone amplifier supports only a 3-pole stereo mini plug. Do not connect other plugs. It may cause a malfunction.
  • When the headphone amplifier is connected to your computer, see “When connecting to a computer, there is no sound or the sound is not played back properly.”
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