HiFiMan HE-400i
Planar magnetic headphones

  • Sale
  • $ 249
  • Regular price $ 449

HiFiMan HE-400i is a full-size planar magnetic headphone intended for high performance listening in the home or studio. HE-400i is 30% lighter than comparable headphones allowing the listener to comfortably enjoy music for hours on end with minimal listener fatigue.

Along with the lighter weight, a newly-designed headband with an improved pressure pattern is a key to the phone’s best-in-class comfort.

The FocusPad, new beveled hybrid ear pads made of pleather and velour, provide both increased comfort and improved sound quality.

The gloss ear cups are finished in a smoky gray, Mylar finish that gives HE-400i a striking contemporary look. 

Over-ear, open-back design.


  • Shipped w/ 2.5 mm connectors rather than the traditional "screw-on" type connector   
  • High-quality, full-size planar magnetic headphone
  • Improved sensitivity
  • Low distortion and high signal output
  • Planar magnetic headphone gives excellent transient response and sound quality almost equal to that of an electrostatic product
  • Provides superior soundstage and spatial imaging
  • 30% lighter than other full-size planar magnetic designs for increased comfort 
  • Uses single-ended drivers
  • Increased efficiency of 93dB allows it to be driven w/ a modest size amplifier or can even be used w/ a portable audio player or smartphone
  • ABS polymer ear cups in a gloss charcoal finish provide contemporary look
  • Improved pressure pattern is designed to provide best-in-class comfort
  • Specially designed beveled ear pads are made of pleather and velour which provide both increased comfort and improved sound quality
  • High-quality sound
  • Massive diaphragm allows high signal input and flexible bass and treble
  • Very fast response time due to lightweight diaphragm design
  • Evenly distributed magnetic force for low distortion and reproduction for live sound
  • Affordable high-quality sound
  • Driver Type: planar magnetic
  • Impedance: 35 ohms
  • Frequency Response: 20Hz - 35kHz
  • Sensitivity: 93dB @1mW
  • Weight: 12.11 oz
  • Plug: 3.5 mm / 6.35 mm
  • Headphone Cable: 1.5 m / 4.9 ft
60-Day Money-Back Guarantee

We want you to love every item you purchase from SKY by Gramophone. If you are not satisfied with your purchase, you may return items that are complete and like-new for any reason within 60 days. You may choose an exchange or a refund for the full amount of the items you purchased*. Refunds must be issued to the same credit card, debit card, gift certificate, or other form of payment used in the original transaction.

SKY by Gamophone is an authorized dealer for all products we carry, which means manufacturer warranties are valid on every product purchased from us.

*Restocking fees apply for furniture, as well as for products without original packaging, missing accessories, and not in new or like-new condition.

(TVs excluded)



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