HiFiMAN HE-400i Over Ear Full-size Planar Magnetic Headphones

499.00 499.00 0 0.00 499.00 With options $499.00 499.00 With options
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Planar magnetic drivers

The HiFiMAN HE-400i’s are built for studio use, as well as casual listening at home. They feature full-size planar magnetic drivers for optimal sound quality as well as spacious, three dimensional sound imaging. The planar magnetic drivers are able to cover a substantial amount of the surface area, providing sound detail and warm spaciousness. Their circumaural design helps effectively block out background noise while listening. With a sensitivity of 93 dB’s, the HE400i’s can easily be driven with a regular sized headphone amplifier, or used with smartphones and MP3 players.

Comfortable, lightweight design

They feature ABS polymer ear cups in a glossy charcoal finish and include a special pressure pattern design for extra comfort. Beveled earpads consisting of pleather and velour also provide comfort and high sound quality for hours of extended listening use. They also include a fully adjustable headband making them incredibly lightweight compared to any other planar magnetic headphones on the market.


  • Circumaural open-back design
  • Single-sided planar magnetic drivers
  • Soft leather-and-velour earpads
  • Lightweight design and adjustable headband for hours of comfortable use

In the box

  • HiFiMAN HE-400i Over Ear Headphones
  • 59” detachable oxygen-free copper cable with miniplug
  • Right angle 3.5mm plug
  • 3.5mm-to-1/4” adapter
  • User manual
  • HiFiMan contact/social media card
  • Serial number card
Weight: 13.1 oz (370 g)
Input: 3.5 mm / 6.35 mm
Cable Length: 4.9' (1.5 m)
Sensitivity: 93 dB
Frequency Response: 20 Hz to 35 KHz
Impedance: 35 ohms
MSRP $499.00