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Hifiman HE400i

The Hifiman HE400i is an around ear, open back planar magnetic headphone. HE400i has soft Focus earpads & a comfortable soft flex headband for a great fit & long wearing comfort. These are a glossy dark grey finish. HE400i include a 1.5m cable wrapped in nylon weave with a 3.5mm plug/6.5mm adaptor.

Be aware, the sensitivity is low, meaning these need more power to drive than your average 35 ohm headphone. HE400i is meant to connect with a headphone amp, not direct into phones & computers.

For a high quality affordable dac, the new iFi ZEN dac or Fiio K5 pro are great options.

The HE400i provide many of the strengths of Hifiman's pricier planar magnetic headphones - great clarity and separation of instruments and vocals, clear treble without sibilance and tight bass response from the large, fast drivers. There is a clear, black background during quiet points / between instruments that good planars excel at providing.

HE400i specs:

  • Frequency Response: 20Hz - 35kHz
  • Impedance: 35 Ohms
  • Sensitivity: 93dB/W
  • Weight: 370 grams
  • Includes 1.5m cable and 1/4" adaptor
  • dual 3.5mm connectors into headphone, 3.5mm plug
  • 1 year warranty to original purchaser

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