The sound is low.

  • Turn up the volume of the connected device.
  • Turn up the volume of the headphone amplifier.
  • When using high-impedance headphones, set the GAIN select switch to HIGH.
  • When using the headphone jack (stereo mini), use headphones with a 3-pole stereo mini plug.

    The jack only supports headphones that have a 3-pole stereo mini plug. If you use headphones/headsets with a remote control or microphone, there may be low sound or no sound.