"Editors' Choice Award Winner" 2012 - Sound+Vision Magazine
"Of all the headphones we’ve tested recently, the HE-400 and HE-500 got the most uniformly enthusiastic responses from our listening panel. Our reactions ranged from 'like a lot' to 'love,' with no major complaints."
"There’s a lot of high-frequency articulation… You really hear the pluck of the guitar strings and the consonants of speech."
"The dynamics are fantastic… Strings and percussion have great realism and delicacy."
"The bass of the HE-400 sounds tight and well-defined."
- Brent Butterworth, Sound+Vision magazine, February 2012
"These phones are so accurate that I took them with me to use as monitors while I recorded a jazz sextet live in a bar/restaurant setting."
"Here then is a pair of mid-priced headphones featuring electrostatic-like performance in a versatile, comfortable, and beautifully made package. They require a bit of 'running-in' as the Brits would say, before performing at their best, but once that is done, I think that you will find, as I have, that these headphones deliver the kind of sound for which Stax would charge you lots more."
- George Graves, The Audiophile Voice, Volume 15, Number 2, 2012
"HiFiMan's HE-400 are the cheapest and easiest-to-drive planar magnetic headphones the audio specialist has made yet. Selling for just a third the price of the top-end models, while offering a similar sonic personality and build quality, they are easy to recommend for an audition."
"Presentation is forward… detailing is excellent and bass is thoroughly well-handled."
- Andrew Williams, TrustedReviews.com, January 16, 2012