Portable Headphone AmplifierPHA-1A

Noise is generated.

  • Connect the headphone amplifier and the device directly, not via a USB hub or USB cable extension.
  • The USB port of the connected computer may have a problem. Connect the headphone amplifier to another USB port of the computer if available.
  • Keep the computer away from the headphone amplifier.
  • Restart the audio playback software.
  • Turn off the connected audio device, then turn it on again.
  • Noise might occur between the songs because the headphone amplifier reproduces an original source authentically with high sound quality. This is not a malfunction.
  • Noise might occur if there are wireless devices nearby. Use the headphone amplifier at a distance from those devices.
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