About the HiFiMAN HE-400i
Explore new musical terrain
Explore new musical terrain
Good headphones have a way of unfolding your music like a road map — suddenly, everything is right there in front of you. That's the specialty of the HiFiMAN HE-400i headphones. They lay out all the details of a song so you can traverse the dynamic peaks and valleys, picking out individual instruments along the way. Like many of HiFiMAN's headphones, the HE-400i employs planar magnetic drivers, which produce sound that's warm, clean, and wide-open. The original HE-400 headphones were impressive — the HE-400i takes things to a whole new level, with improved sound, styling, and comfort that begs for repeated listening.
The HE-400i combines exquisite sound quality with a lightweight design.
Warm, balanced sound
HiFiMAN has quickly distinguished themselves in audio circles with their planar magnetic drivers. While most headphones rely on dynamic drivers like the ones usually found in speakers, the HE-400i's planar magnetic drivers offer some cool advantages. Because the drivers cover a larger surface area, they're able to deliver striking detail and spaciousness. HiFiMAN's planar drivers are also known for their warmth, which gives your music a pleasant smoothness. These headphones also have a remarkably natural timbre — important so vocals sound open and accurate. No frequencies are over-accentuated, for a tone that's nicely balanced.
Getting the look and feel just right
As good as the '400i headphones sound, their physical attributes will add a lot to your listening enjoyment. These headphones are quite stunning and extremely lightweight for a planar design. HiFiMAN completely reimagined these headphones to look good and feel good, without sacrificing the slightest bit of sound quality. The earpads mix leather and velour for a luxurious fit, while the unique adjustable headband is both practical and attractive.
Use with your smartphone, or better yet...
These headphones are efficient enough to be plugged directly into a smartphone or portable music player. They'll sound great, but they'll sound even better with a dedicated headphone amplifier. Then you'll really hear just what these headphones are capable of.
Product highlights:
- planar magnetic drivers produce warm, detailed sound with low distortion
- over-the-ear, open-back design offers spacious sound
- soft leather-and-velour earpads
- lightweight design and adjustable headband for long-lasting comfort
- 59" detachable oxygen-free copper cable with miniplug
- 1/4-inch plug adapter included
- frequency response: 20-35,000 Hz
- sensitivity: 93 dB
- impedance: 35 ohms
- weight: 13.05 oz.
- warranty: 1 year
- MFR # HE-400i
What's in the box:
HiFiMAN HE-400i owner's manual
- HE-400i over-the-ear headphones
- 5' Audio cable with dual 2.5mm plugs (headphone) and right angle 3.5mm plug (device)
- 3.5mm-to-1/4" Adapter
- Owner's Guide
- HiFiMan contact/social media card
- Serial Number card
Customer reviews for HiFiMAN HE-400i
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Average review:
4.5 out of 5 starsThanks for submitting your review
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More details on the HiFiMAN HE-400i
Features & specs
General | ||
---|---|---|
Fit Style | Over-the-ear | |
Earcup Type | Open | |
Earcup Width x Height | 4.045" x 4.045" | |
Noise-canceling | No | |
Bluetooth | No | |
Bluetooth Version | --- | |
Single-earbud Operation | --- | |
Mic For Taking Calls | No | |
Voice Assistant Access | ||
Amazon Alexa | No | |
Google Assistant | No | |
Siri | No | |
Connectors | ||
3.5mm | No | |
1/4" | Yes | |
Lightning | No | |
4.4mm balanced | No | |
XLR4 balanced | No | |
2.5mm | No | |
Other | None | |
Specs | ||
Frequency Response | 20-35k Hz | |
Sensitivity | 93 dB | |
Impedance | 35 Ohms | |
Weight | 13.05 ounces | |
Cord Length | 60" | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year |
Product Research
Features
Overview: The HiFiMAN HE-400i over-ear headphones feature high-performance planar magnetic drivers that provide a warm, pleasant sound signature. The HE-400i comes with a detachable 5' cable with a right-angled 3.5mm plug, and a 1/4" adapter. The headphones store in a hinged, black leather box.
Design: The HE-400i headphones, at just over 13 ounces, are 30% lighter than comparable planar magnetic headphones. The large diameter ear cups feature soft "pleather" and velour pads, and fit comfortably around your ears. The 2-3/4" wide headband sits lightly on your head. The specially-designed drivers are more efficient than their predecessors, and can be driven with portable audio devices and smartphones or a small amplifier.
5' Cable: The supplied 5' cable has dual 2.5mm plugs that connect at the two ear cups. The cable terminates into a right-angled 3.5mm plug for use with most portable devices. It comes with a snap-on 1/4" adapter for when you want to listen to your home audio components.
Specifications:
- Frequency Response: 20Hz to 35kHz
- Impedance: 35 ohms
- Sensitivity: 93dB
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