Easy to Drive
One of the highest efficiency planar phones in the world! HIFIMAN’s newest HE400S sounds terrific on your smartphone or most any portable audio device.

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

Long Hours of Comfortable Listening
Innovative headband and specially designed ear pads for remarkable comfort allowing you to enjoy your music for hours on end
Lightweight: Only 350g!

Why Choose A Dynamic Headphone…When You Can have Planar?
Dynamic headphones utilize conductors that vibrate in limited areas of the diaphragm. Result is that a large percentage of the diaphragm cannot be directly driven by those conductors.
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.

Our Take

The third in a line of entry-level planar magnetic headphones from HIFIMAN, the HE400S is their best effort yet. It delivers a level of detail and transparency previously unheard of in a $300 headphone, in a lightweight, comfortable, and durable package.  We can’t find a better sounding headphone at this price point, and as such, couldn’t recommend the HE400S more highly. It is the ideal choice as one’s first foray into hi-fi headphones, and those upgrading from “ordinary” cans will be blown away by the combination of detail, speed, impact, and liquidity.