Portable Headphone AmplifierPHA-3

Parts and controls

Front and left side

Rear side

  1. GAIN select switch
  2. DSEE HX select switch
  3. Hi-Fs (High Sampling Frequency) indicator
  4. DSD indicator
  5. POWER/CHG (power/charge) indicator
  6. (headphones) NORMAL jack
  7. (headphones) BALANCED L/R jack
  8. Power/volume knob
  9. INPUT select switch
  10. OUTPUT select switch
  11. Xperia/WALKMAN/PC (USB AUDIO) connecting port
  12. iPhone/iPad/iPod connecting port
  13. OPT IN port
  14. AUDIO IN/LINE OUT jack
  15. DC IN 5V port