Headphone Amplifier FiiO A3


All aluminium alloy body and chassis increases metal texture and increases shield from electromagnetic interference



  • All-new appearance – All aluminum-alloy body and chassis adds street cred and increases shielding from EM interference.
  • Visual operation experience – Comes with sexier and more reliable toggle switches.
  • Improved sound performance – Pre amplifier OPA1642: serves as the voltage amplifier, with great layering and medium and high frequency extension. Power amplifier AD8397: serves as the current amplifier, with great control of low frequencies and smooth drive ability.
  • Fully discrete bass circuit design – Bass On: Boosts bass effect without influencing the overall sound field. Bass Off: Bypasses bass circuit, decreases interference and noise floor so as to ensure the purity of the sound quality.
  • Reinforced battery capacity – Can be operated while charging, the 1400mAH built-in battery ensures more than 16 hours of battery life.


  • Power supply: MINI USB port
  • Maximum output power: 450mW (16-ohms), 270mW (32-ohms)
  • Frequency response: 20hz-20khz
  • Signal-to-noise ratio: >=108dB
  • THD: <0.004%
  • Charging time: ~240 min
  • Operating time: up to 16 hours
  • Recommended earphone impedance: 16-150ohms
  • Dimensions: 91.2mm x 56mm x 13mm
  • Weight: 92g (with battery)



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