HiFiMan HE400S
Over-ear full-size planar magnetic headphones

  • Sale
  • $ 299

One of the highest efficiency planar phones in the world, HIFIMAN's HE400S sounds terrific on your smartphone or most any portable audio device.

HE400S delivers all the lifelike clarity, detail, extended bass and wide sound stage that audiophiles have come to expect from HIFIMAN.


  • Innovative headband and specially designed ear pads for remarkable comfort allowing you to enjoy your music for hours on end
  • Lightweight: only 350g
  • Planar headphones have conductive layers over almost all of the diaphragm. Evenly driven by these conductors, result is significantly lower distortion than conventional dynamic headphones.
  • Over-ear, open-back design
  • Frequency Response : 20Hz – 35KHz  
  • Sensitivity: 98dB  
  • Driver: planar magnetic
  • Impedance: 22 Ohms  
  • Weight: 12.35 oz
  • Cable Length: 1.5 m  
  • Plug: 3.5mm/6.35mm
  • What's in the Box:
    • 1/4” (6.35 mm) headphone adapter
    • Headphone cable (1.5 meter or 4.9 Feet; 3.5mm plug)
    • Earpads: One pair (on the headphone)
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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