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Drop + HIFIMAN HE4XX Planar Magnetic Headphones

Drop + HIFIMAN HE4XX Planar Magnetic Headphones

Complete Setup:
ADV. Headphone Hanger
Drop + THX AAA™ ONE Linear Amplifier
Add Drop 3-year Warranty with Accidental Coverage (US Only) +$30.00
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Free Returns in USA

Planar Magnetics Like You’ve Never Seen Before

Many headphone companies have tried their hand at planar magnetic drivers, but none have done it quite like HIFIMAN. The result of founder Dr. Fang’s PhD research at Columbia University, its driver technology has landed the company in TIME, Forbes, and CNET’s “The Audiophiliac,” and won it the CES Editors’ Choice Award. Now, that tech is available at an unheard-of price in the Drop + HIFIMAN HE4XX: a pair of high-efficiency, open-back planar magnetics that don’t need a fancy amp to sound amazing. Listen to them directly from your smartphone, laptop, or desktop computer, or add a headphone amp to take them to the next level. The sound is smooth, engaging, and even across the frequency range, with airy, sparkly highs and the planar bass slam that HIFIMAN is known for.

Drop + HIFIMAN HE4XX Planar Magnetic Headphones
Drop + HIFIMAN HE4XX Planar Magnetic Headphones
Drop + HIFIMAN HE4XX Planar Magnetic Headphones
Drop + HIFIMAN HE4XX Planar Magnetic Headphones
Drop + HIFIMAN HE4XX Planar Magnetic Headphones

Premium Aesthetic, Comfortable Feel

Comfort is king for the HE4XX, which features HIFIMAN’s Focus-A hybrid ear pads: the best-feeling, best-sounding pads the company has to offer. The foam has extra cushioning and is specially angled for acoustics, and the part of the pad touching the ear is made of soft, luxurious velour. A revival of the original HIFIMAN style with some structural improvements, the headband is made of spring steel—so it can bend without losing its shape—and hand-stitched with breathable protein leather. Done in an exclusive midnight-blue colorway, the matte finish is soft to the touch and resistant to fingerprints. The attention to detail is evident throughout, down to the robust steel gimbals with a black oxide finish and matching Allen screws.

Drop + HIFIMAN HE4XX Planar Magnetic Headphones
Drop + HIFIMAN HE4XX Planar Magnetic Headphones
Drop + HIFIMAN HE4XX Planar Magnetic Headphones
Drop + HIFIMAN HE4XX Planar Magnetic Headphones

HIFIMAN: For Audiophiles, By Audiophiles

Born in New York City in 2007, HIFIMAN has had a big influence on the audiophile world in the 10 years since its founding. Dr. Fang has always had close ties with the community. He started out on Head-Fi and attended local meetups while pursuing his doctorate at Columbia. When he realized his PhD research could be relevant to his passion—the music-listening experience and the audiophile products that improve it—he started talking with forum members and meetup attendees about what they’d like to see in the next generation of headphones. HIFIMAN is a natural partner for Massdrop because our goals are so aligned. At its core, it represents a member of the audiophile community building a company that serves the rest of the community.


Frequency Response
Total Harmonic Distortion (THD)


  • Drop + HIFIMAN
  • Open principle
  • Planar magnetic drivers
  • Exclusive midnight-blue colorway
  • Soft-touch matte finish
  • Spring steel and hand-stitched protein leather headband
  • Focus-A hybrid ear pads
  • Adjustable sliders
  • Steel gimbals and Allen screws with black oxide finish
  • Silver printing
  • Laser-etched serialization
  • Frequency response: 20 Hz–35 kHz
  • Sensitivity: 93 dB
  • Impedance: 35 ohms
  • Cable: 4.9 ft (1.5 m), removable
  • Plug: ¼ in (6.35 mm)
  • Weight: 13.1 oz (370 g)


  • ¼ in (6.35 mm) to ⅛ in (3.5 mm) adapter
  • Manufacturer’s 1-year warranty

Drop Extended 3-year Warranty with Accidental Coverage

Drop is offering a purchasable extended warranty with accidental coverage for this product. Select the option at checkout, and your purchase will be protected from drops, spills, accidents, everything but theft, for 3 years. See the full details of our warranty program here


We get it. Sometimes what you ordered just doesn’t work out. If that’s the case for you, don’t fret! All customers (both US and international) may return this item in new, unused condition within 30 days of delivery.


Estimated ship date is July 4, 2022 PT.

Payment will be collected at checkout. Cancellations are accepted up to 2 hours after checkout for in-stock items, or up until pre-order ships.

Top Customer Questions33
Are the 2 cables that connect to the headphone cans 2.5mm or 3.5mm?
Mar 30, 2021
Top Answer
I just looked at mine to be sure and they are 3.5mm jacksRead More
Apr 1, 2021
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I have a Fiio BTR5. Will this be enough to power the headphones?
Mar 26, 2021
Top Answer
i have found using the balanced out of the btr5 far more satisfying in terms of power / drive abilities. that will require an after market 2.5 mm balanced cable however. the single ended 3.5mm out...Read More
Apr 7, 2021
Can someone recommend me a DAC/AMP combo to drive this?
Feb 16, 2021
Top Answer
I’ve been using the fiio k5 Pro and have been quite satisfiedRead More
Feb 19, 2021
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