M400 Hi-Fi Headphones

Quick Overview

Design by Studio F. A. Porsche. Sound by KEF.

Seriously cool on-ears, with outstanding sound quality from state-of-the-art driver technology in a seductively sleek design that's engineered for total comfort.
  • Features
  • Specifications
  • Awards and Reviews
Features
KEF M400 Hi-Fi Headphones - Reddot Award Winner

HIGH RESOLUTION SOUND ON THE MOVE

As you might expect from people who are obsessed with high resolution sound, the beauty of the M400 is more than skin deep. With KEF’s ultra-light 40mm neodymium driver and copper clad aluminium wire (CCAW) voice coil, the M400 reveals all the glories of the original performance: crisp, intricately detailed highs, seamlessly fluid midrange and tight, clean bass. Music you can feel – and so realistic, you can almost touch it. Your favourite tracks never sounded so good.
KEF M400 Hi-Fi Headphones - High Resolution Sound on the Move
KEF M400 Hi-Fi Headphones

PRECISION DESIGN

Lightweight, compact and built to withstand years of use on the move as well as at home, the M400 has all the makings of a true design classic. The invisibly hinged folding frame is engineered from precision-machined cast aluminium, with supremely comfortable supra-aural earpads and a leather-covered headband contrasting with four silky premium finishes: Racing Blue, Sunset Orange, Deep Black or Champagne White.
KEF M400 Hi-Fi Headphones - Precision Design

EXCELLENT COMFORT AND NOISE ISOLATION

Padded with high density memory foam covered in soft, sweat resistant protein leather, the ball-jointed ‘race-track’ ear pads fit the exact shape of your ear and form an effective seal that cuts out external noise while preventing sound leakage. The light, sturdy aluminium frame exerts the right amount of gentle pressure that allows you to enjoy your music in comfort for as long as you want.

M400 Hi-Fi Headphones - Excellent Comfort and Noise Isolation

FITS ALL YOUR DEVICES

Complementing all Apple and most other digital devices, M400 features an integrated inline microphone and remote control on a detachable cable, allowing you to operate the play functions or switch between calls and music. The frame is discreetly hinged to fold neatly away for ease of storage when not in use, and like other KEF headphones, the M400 protects you against excessive sound pressure in line with the CENELEC standard. Sublime sound quality, thanks to KEF innovation. Engineered for durability and class-leading comfort. And a flair for design that makes other headphones look boring. At the price, nothing else comes close.

KEF M400 Hi-Fi Headphones - Fits all your devices
KEF M400 Hi-Fi Headphones

IN THE BOX

KEF M400 Hi-Fi Headphones - In the box

"Made for iPod," "Made for iPhone," and "Made for iPad" mean that an electronic accessory has been designed to connect specifically to iPod, iPhone, or iPad, respectively, and has been certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of the device or its compliance with safety and regulatory standards. The remote and mic are supported only by iPod nano (4th generation or later), iPod classic (120GB, 160GB), iPod touch (2nd generation or later). iPhone 3GS or later, and iPad. The remote is supported by iPod shuffle (3rd generation or later). Audio is supported by all iPod models and iPad.

iPad, iPhone, iPod, iPod classic, iPad nano, iPod shuffle, and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries.


Specifications

Additional Information

Driver (Headphone) 40mm
Frequency Response 20Hz~20kHz
Sensitivity 101.5dB±4dB (IEC-318 at 1KHz)
Impedance 32±15% Ohm
Maximum Input Power 30mW
Noise Attenuation -20dB
Cable length 1.3m
Connector 3.5/3.5mm
Weight 175g
Unit measurement Piece
Document Download M400 Product Information Sheet
KEF Headphones Warranty Information
Awards and Reviews


SOUND & VISION - TOP PICK


"... played nice and loud, totally rocked my world... the M400 projected a huge soundstage around my head, and the music's ominous low rumble was viscerally felt. The M400 sounds refined and clear, with bass that is definitely goosed up just a tad… but it's done tastefully." (Download full review here)

Year: 2016
Issuing Body: Sound & Vision
Country: United States
Product: M400


RED DOT AWARD 2016 WINNER


"With a plethora of advanced acoustic features and a sleek, robust design, the KEF M400 headphones bring high-resolution sound to today's mobile, connected consumers."

Year: 2016
Issuing Body: Reddot
Country: Germany
Product: M400


iF PRODUCT DESIGN AWARD 2016


"The distinctive profile of the KEF M400 combines state-of-the-art acoustic technologies with precision engineering, robust lightweight design and exceptional wearing comfort." (Visit the iF Online Exhibition site)

Year: 2016
Issuing Body: iF Online Exhibition
Country: United Kingdom
Product: M400


METRO NEWSPAPER


"Like Hush Puppies for your ears - the M400s are lighter, brighter and built for the commute."

Year: 2015
Issuing Body: Metro Newspaper
Country: United Kingdom
Product: M400


Review
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