KEF M400 Hi-Fi Headphones – Racing Blue


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SKU: kefmM400bl Category:

KEF M400 Hi-Fi Headphones Racing Blue – £129 – light, robust and supremely comfortable, M400 Hi-Fi headphones are designed for people who are serious about sound.



M400 Hi-Fi Headphones
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.

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. 

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.

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.

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.

Package components:

  • M400 Headphones
  • Protective Case
  • Twin Jack Adapter
  • 3.5mm cable x 1.3m 

Technical Specifications:

  • Driver :  40 mm and 10mm
  • Frequency Range: 20Hz – 20kHz
  • Sensitivity (1m/W): 101.5 dB
  • Impedance : 32 Ohm
  • Noise Attenuation : -20dB
  • Cable Length : 1.3m
  • Connector: 3.5mm
  • Weight: 175 g
Weight 0.400 kg
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