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HIFIMAN HE-400I Over Ear Full-Size Planar Magnetic Headphones Adjustable Headphone with Comfortable Earpads Open-Back Design Easy Cable Swapping

4.2 out of 5 stars 860 ratings

-44% $281.36
List Price: $499.00
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Brand HIFIMAN
Ear Placement Over Ear
Color Gray
Connectivity Technology Wired
Model Name HE-400I

About this item

  • Get an extra three-month extended warranty by registering your products on our official website.
  • 30% lighter than comparable headphones
  • Newly-designed headband with an improved pressure pattern
  • The FocusPad, new beveled hybrid ear pads made of pleather and velour
  • Intended for high performance listening in the home or studio

Additional Details

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Buy this product as Renewed and save $72.74 off the current New price.

HIFIMAN HE-400I Over Ear Full-size Planar Magnetic Headphones (Renewed) $208.62
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Frequently bought together

  • HIFIMAN HE-400I Over Ear Full-Size Planar Magnetic Headphones Adjustable Headphone with Comfortable Earpads Open-Back Design
  • +
  • NEW NEOMUSICIA Replacement Cable Compatible with Hifiman HE4XX, HE-400i (The Latest Version with Both 3.5mm Plug) Headphones
  • +
  • NEW NEOMUSICIA Replacement Cable Compatible with Hifiman HE4XX, HE-400i (The Latest Version with Both 3.5mm Plug) Headphones
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Compare with similar items


HIFIMAN HE-400I Over Ear Full-Size Planar Magnetic Headphones Adjustable Headphone with Comfortable Earpads Open-Back Design Easy Cable Swapping
Drop + HIFIMAN HE4XX Planar Magnetic Over-ear Open-back Headphones,midnight-blue
HIFIMAN HE-400I Over Ear Full-size Planar Magnetic Headphones (Renewed)
HIFIMAN HE400S Over Ear Full-Size Planar Magnetic Headphone
HIFIMAN HE400i Over Ear Open Back Magnetic Planar Reference Studio Headphone with 3.5mm Plug-in Connector-Extended Manufacturer's Warranty
Customer Rating 4.2 out of 5 stars (860) 4.3 out of 5 stars (284) 4.4 out of 5 stars (37) 4.2 out of 5 stars (188) 4.6 out of 5 stars (29)
Price $281.36 $145.68 $208.62 $149.00 $159.00
Shipping FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details
Sold By Amazon.com Amazon Warehouse Amazon Warehouse GRAMOPHONE Kaviso
Color Gray Midnight-Blue Black Silver Black
Fit Type Circumaural Over-Ear Over-Ear Over-Ear Over-Ear
Headphones Form Factor Over Ear Over Ear Over Ear Over Ear Over Ear
Item Dimensions 8 x 7 x 4.5 inches 8 x 7 x 4.5 inches 3.43 x 3.9 x 5.39 inches
Item Weight 0.82 lbs 0.82 lbs 0.82 lbs 0.77 lbs 0.82 lbs
Special Features lightweight Tangle-free-cord, lightweight, open-back lightweight Long Hours of Comfortable Listening; Lifelike clarity, detail, extended bass and wide sound stage high efficiency, planar magnetic

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From the manufacturer

Drop + Hifiman HE-35X HE35X planar magnetic headphones over-ear on-ear Drop + Hifiman HE-4XX HE4xx massdrop hifiman over-ear open-back planar magnetic headphones Hifiman HE-400i HE400i planar magnetic headphones on-ear over-ear Drop + Hifiman x Massdrop Edition XX ananda
Drop + HIFIMAN HE-35X Drop + HIFIMAN HE4XX HIFIMAN HE-400i Massdrop x HIFIMAN Edition XX
Driver / Design: Planar Magnetic / Open-back Planar Magnetic / Open-back Planar Magnetic / Open-back Planar Magnetic / Open-back
Audio Profile: The HE-35X improves upon the HE-350's frequency response, and balances the treble for a smoother overall sound. 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. 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. The sound is airy and spacious, with a transporting level of detail.
Impedance / Sensitivity: 19 ohms / 98 dB 35 ohms / 93 dB 35 ohms / 93 dB 20 ohms / 93 dB
Frequency Response: 20 Hz - 20 kHz 20 Hz - 35 kHz 20 Hz - 35 kHz 8 Hz - 50 kHz
Cable: 4.9 ft (1.5 m), removable 4.9 ft (1.5 m), removable 4.9 ft (1.5 m), removable 5.5 ft (1.7 m), removable
Plug: ⅛ in (3.5 mm) with ⅛ in (3.5 mm) to ¼ in (6.35 mm) adapter included ⅛ in (3.5 mm) with ⅛ in (3.5 mm) to ¼ in (6.35 mm) adapter included ⅛ in (3.5 mm) with ⅛ in (3.5 mm) to ¼ in (6.35 mm) adapter included ⅛ in (3.5 mm)
Weight: 13.6 oz (385 g) 13.1 oz (370 g) 13.1 oz (370 g) 14.8 oz (420 g)
Included: ⅛ in (3.5 mm) to ¼ in (6.35 mm) adapter ⅛ in (3.5 mm) to ¼ in (6.35 mm) adapter ⅛ in (3.5 mm) to ¼ in (6.35 mm) adapter ⅛ in (3.5 mm) to ¼ in (6.35 mm) adapter
Ideal Use: Ideally paired with a portable or desktop amp, they sound great directly from your smartphone, laptop, or desktop computer. Ideally paired with a portable or desktop amp, they sound great directly from your smartphone, laptop, or desktop computer. Ideally paired with a portable or desktop amp, they sound great directly from your smartphone, laptop, or desktop computer. With a uniquely low impedance of 20 ohms, the Edition XX is easy to drive from your laptop or portable music player.

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What's in the box

  • Hifiman HE-400i
  • Display Box
  • 1/4" Adapter
  • Product Description

    Product Description

    The HIFIMAN HE-400i is a high quality, full-size planar magnetic headphone designed for critical listening in the home or studio. At little more than twelve ounces, HE-400i is 30% lighter than comparable planar magnetic headphones allowing the listener to comfortably enjoy music for hours on end. In addition, a newly-designed headband and beveled hybrid ear pads provide added comfort as well as improved sound quality. Using single-ended drivers, HE-400i delivers a lifelike soundstage and spatial imaging. Its increased efficiency of 93dB allows it to be driven with a modest size amplifier or can even be used with a portable audio player or smartphone. A premium cable is included comprised of Crystalline metal with Oxygen-free copper and silver. HE-400i features ABS polymer ear cups in a gloss charcoal finish.

    From the Manufacturer

    The HIFIMAN HE-400i is a high quality, full-size planar magnetic headphone designed for critical listening in the home or studio.  At little more than twelve ounces, HE-400i is 30% lighter than comparable planar magnetic headphones allowing the listener to comfortably enjoy music for hours on end. In addition, a newly-designed headband and beveled hybrid ear pads provide added comfort as well as improved sound quality. Using single-ended drivers, HE-400i delivers a lifelike soundstage and spatial imaging. Its increased efficiency of 93dB allows it to be driven with a modest size amplifier or can even be used with a portable audio player or smartphone. A premium cable is included comprised of Crystalline metal with Oxygen-free copper and silver.   HE-400i features ABS polymer ear cups in a gloss charcoal finish.
    Consumer Alert: For Your Protection HIFIMAN products are sold through carefully selected, authorized retail partners to ensure the highest levels of professionalism and service. HIFIMAN products not sold by us, or one of our authorized partners, cannot be verified as authentic and will not receive the HIFIMAN manufacturer's warranty or factory service. Before purchasing, please verify that you are dealing with an authorized HIFIMAN retail partner. You can do that by checking our official website. Help us help you.

    Customer reviews

    4.2 out of 5 stars
    4.2 out of 5
    860 global ratings

    Top reviews from the United States

    Reviewed in the United States on June 24, 2017
    Customer image
    5.0 out of 5 stars Without a doubt the best planars around at current price!
    Reviewed in the United States on June 24, 2017
    I am no expert at looking at the sound graphs (frequency response graphs) and say this headphone is good for this, that headphone is good for that etc. I am more of an avg Joe who over the years have upgraded from some headphones whose name I don't even recall anymore to a SennheiserHD 202, then an Audio-Technica ATHM50X, then a Sennheiser Momentum 2.0 (wired) to a Bose QC35 to a Fostex T50RP MKII to the HiFiMan HE400i. I am pretty careful with my headphones though and still owns all of these ( HD202 is probably 10 years old or more).

    Of these headphones, I have to say, the He400i stands out! First off, they are not that heavier, the headband rests very comfortably over the head preventing any kind of strain, the ear pads are by far the most comfortable in this group, and the sound quality is amaaaaazing!! The biggest revelation I had while listening to many of my favorite songs was that how much detailed the the songs actually were. It almost felt like I was listening to a different version of the songs! That is the level of detail that these headphones brings out. I also like the sound stage it provides as it immerses you in the music thoroughly.

    I do active and passive listening to the songs .. with passive listening when I am doing some chores around the house. Even when doing passive listening, the music flowing through these headphones frequently grabbed my attention and made me stop what I was doing, close my eyes and just listen till the remainder of the song. It is just that good.

    If anyone is still contemplating buying these phones, all I have to say is, do yourself a favor and just go for it. The fully covering (Circumaural) ear pads alone is reason enough to get this. This, combined with how comfortable and fatigue less these are over long sessions, combined with the amazing sound quality these provide makes it a real winner in my eyes (or should I say ears? ).

    One thing to note is that.. as far as planars are concerned, these headphones are very easy to drive. I was able to get a good quality output from the headphone even without an Amp or a DAC attached. However, you do need a good amp to bring the best out of these headphones. A Modi 2/ Magni 2 combo is an excellent option.. If you are on a budget, just get an amp like the Fiio A3 (which is really awesome for the price btw).

    I am just happy that I did go for these headphones and am looking forward to hours and hours of listening and re-discovering all the beautiful songs that I have loved for so many years!
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    77 people found this helpful
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    Reviewed in the United States on June 22, 2017
    71 people found this helpful
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    Top reviews from other countries

    M. Milewski
    4.0 out of 5 stars Brilliant headphones
    Reviewed in the United Kingdom on December 20, 2019
    2 people found this helpful
    Report abuse
    Bartholomew
    4.0 out of 5 stars They are quite good. Sound is nice
    Reviewed in the United Kingdom on August 28, 2017
    10 people found this helpful
    Report abuse
    Bogdan Radu
    5.0 out of 5 stars Excellent headphones, absolutely recommended !
    Reviewed in Canada on January 5, 2017
    38 people found this helpful
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    Ari Kline
    2.0 out of 5 stars Great sound with terrible quality propriety wiring
    Reviewed in Canada on September 6, 2018
    11 people found this helpful
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    Patrick James Morley
    5.0 out of 5 stars Outstanding clarity and detail
    Reviewed in Canada on February 5, 2022
    One person found this helpful
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