Portable Headphone AmplifierPHA-3

Setting the sound quality (DSEE HX)

By setting the DSEE HX select switch to ON, you can enjoy better sound quality from your audio device connected to the headphone amplifier.

  1. Set the DSEE HX select switch to ON.

    The compressed audio files are upgraded to a sound quality higher than that of a CD, and provides a dynamic sound.


  • The DSEE HX function will stop working when the signals below are transmitting to the headphone amplifier.
    • the optical signal
    • the analog signal
    • the linear PCM digital signal of sampling frequencies is more than 88.2 kHz
    • the DSD digital signal