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HiFiMAN EF100 Hybrid tube digital amplifier

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  • $ 499

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HiFiMan EF100 amplifier is a hybrid headphone amplifier and integrated amplifier. It has three independent amplifier sections and uses vacuum tube technology resulting in a headphone amplifier and power amplifier providing excellent and detailed sound.


  • Hybrid headphone amplifier and integrated amplifier
  • Compact chassis
  • Vacuum tube input that works as a shared preamp
  • Class AB headphone amplifier
  • Class T speaker power amplifier
  • Produced 2w output under a 32 ohm load
  • Can easily drive many high-performance headphones
  • Can serve as a hybrid power amplifier to drive speakers of moderate to high efficiency
  • Combines the warmth of the vacuum tubes w/ the high efficiency of a digital amplifier
  • When the amp is used as a power amplifier, it gives 4.5W per channel—it can drive Hi-Fi speakers of moderate to high efficiency
  • Delivers great sound from a variety of sources for both headphone and speaker applications 


  • Voltage: 110 / 220 VAC
  • Input Impedance: 47k
  • Output Impedance: 32 to 300 ohms
  • Headphone Amplifier Output: 7.8V, 2000mW (output voltage and output power under 30 ohms load)
  • Headphone Amplifier Frequency Response: 20 - 20kHz + / - 0.2dB
  • Power Amplifier Output Power: Each channel 4.5W (4 ohms load)
  • Power Amplifier Frequency Response: 20 - 20kHz + / - 1dB
  • Power Amplifier S / N: 95dB
  • Power Amplifier Tube: 6N3J
  • Frequency Response: 20 - 20khz + / - 1dB
  • Dimensions: 2.55"h x 13.4"w x 10.2"d
  • Weight: 6.6 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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