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A triumph of form marrying function, MUON is perhaps the most extraordinary loudspeaker ever conceived.


Want to get very serious about 2 channel audio?

Look no further again!



With shiny super-formed aluminum tightly hugging sexy curves that'd make even Ashley Graham jealous, KEF believes they've crafted the "world's most extraordinary audio speaker ever conceived and produced" in their flagship Muon loudspeaker.

Credit high-end designer Ross Lovegrove with creating its distinctively sleek and seductive form factor. But this gorgeous contemporary sculpture is more than a pretty face. It packs world-class audio chops as well.


There can be few projects in this World where the central aim is to create an ‘ultimate’. But this was precisely the goal when KEF combined their state-of the-art acoustic technology with the sensual, organic forms of visionary designer Ross Lovegrove. The result was Muon – perhaps the most extraordinary audio speaker ever conceived.

The Muon loudspeaker is fabricated from super-formed aluminium, which uses a similar moulding process to vacuum forming. The concept uses malleable sheets of heated aluminium to achieve otherwise impossible shapes. The eventual form of the loudspeaker was the result of a careful convergence between Ross Lovegrove’s design aesthetics and the physics of sound. The process by which they were conceived meant that, in effect, Ross Lovegrove was sculpting the sound by ‘skinning’ the technology with purposeful form – the final shape was created through an evolutionary process that ensured it could only be the form that it is.

As a truly contemporary art form appropriate for 21st century living, and limited to an edition of just 100 pairs, Muon is unequivocally at the apex of speaker design and technology. Quite simply, it is the best you can get.


  • 4 x 250 mm bass drive units with ultra low distortion neodymium magnet systems
  • 1 x 250 mm lower midrange drive unit with ultra low distortion neodymium magnet system and response tailoring, chromed phase plug
  • 1 x 165 mm Uni-Q® driver array incorporating a 165 mm midrange unit and a 25 mm high frequency unit
  • 2 x 250 mm rear mounted bass drivers for low frequency directivity control


  • Enclosure constructed from 6 mm, super-formed aluminium. Internally braced and critically treated with damping elements.



Color: Black

    Product Muon
    Design Four-way closed box floorstanding loudspeaker ACE enclosure
    Dimensions H x W x D: 2000 x 600 x 380 mm (78.8 x 23.6 x 15 in.)
    Weight 115kg (253lbs)
    Drive Units 6 x 250mm (10in.) LF
    1 x 250mm (10in.) LMF
    Uni-Q driver array:
    MF: 1 x 125mm (5in.) Li-Mg-Al /LCP, hybrid cone
    HF: 1 x 25mm (1in.) vented aluminium dome, featuring KEF's unique 'Tangerine Waveguide'
    Frequency Response 25Hz to 60kHz * (±3dB)
    Crossover Frequencies 120Hz, 300Hz, 2.3kHz
    Amplifier Requirements 100 to 400W (typical)
    Sensitivity 90dB (2.83V/1m)
    Input Impedance 4 Ohms
    Low Frequency Extension 20Hz (-6dB) *
    High Frequency Extension 100kHz (-10dB) *
    Maximum Output 118dB

    * Typical, in-room response Measurment per unit

    ** KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE. **


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