FiiO A5 Portable headphone amplifier

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  • $ 129.99

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FiiO's A5 portable headphone amplifier is a major improvement over the E12 series. The details have been revamped to keep the E12's strengths but to make a much better product. From the external finish to the internal components, the A5 is a major improvement in headphone amplifier systems being more durable and providing much better sound quality.


  • All major components constructed w/ high-precision metal film resistors
  • Can enjoy the A5 on all kinds of headphones due to the low / high gain switch
  • Total harmonic distortion rating of almost 0 percent (better than previous series' rating by 33 percent)
  • Improved signal-to-noise ratio
  • Improved channel balance, lower noise floor, and overall purer sound
  • Highly efficient, low-resistance power management system with considerable power reserve unheard of among portable amplifiers
  • 13 hours of playtime on a full charge
  • Classic circuit architecture w/ reduced distortion and increased dynamic range
  • Sandblasted finish w/ fine grains of zirconium provide more durable product with a smooth finish
  • Design of the volume knob inspired by string instruments w/ 56 45º lines etched onto knob surface


  • Opamp (Operational Amplifier) Combo: MUSE S02 + LME 49600
  • Battery: 880 mAh 11V
  • Charger: 5V/2A 
  • S/N Ratio: 115dB (A-weighted)
  • THD+N: 0.002% (1kHz)
  • Recommended Headphone Impedance: 16 ~ 300 Ω
  • Audio Input: 0.138" stereo jack
  • Volume Control: ALPS potentiometer
  • Drive Ability: 16 - 300 ohms (recommended)
  • Headphone Output: 0.138" stereo jack
  • Bass Boost: 1 level
  • Power Input: recommend DC5V, 2A
  • Charging Time: < 3 hrs
  • Frequency Response: 10Hz - 90kHz ( -3dB Input 220mV )
  • Input Sensitivity: 5.6V (GAIN = L) 1.15V (GAIN = H)
  • Output Impedance: < 0.30 hms
  • Maximum Input Level: > 8Vrms
  • Crosstalk: >/ -75dB 
  • Gain: 13dB (GAIN = H) 0dB (GAIN = L)
  • Channel Imbalance: < 0.3dB
  • Bass Boost Range: > 5dB (BASS ON)
  • Peak Output Voltage: 14.96 Vp-p
  • Maximum Output Current: 250mA
  • Dimensions: 4.88"h x 2.57"w x 0.57"d
  • Weight: 0.37 lbs 

WARNING: California Residents - Proposition 65. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to



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