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KEF MUON 10" Floorstanding Speaker
KEF MUON 10" Floorstanding Speaker 0
KEF MUON 10" Floorstanding Speaker 1
KEF MUON 10" Floorstanding Speaker 2
KEF MUON 10" Floorstanding Speaker 3
KEF MUON 10" Floorstanding Speaker 4

KEF MUON 10" Floorstanding Speaker

Model #: Muon
At a Glance
The MUON loudspeaker is fabricated from super-formed aluminum, which uses a similar molding process to vacuum forming. The concept uses malleable sheets of heated aluminum to achieve otherwise impossible shapes.
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Get to know this product.

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

MUON is the result of KEF engineering prowess combining with world-class industrial design by Ross Lovegrove. The Muon is limited to an edition of 100 pair.

The MUON loudspeaker is fabricated from super-formed aluminum, which uses a similar molding process to vacuum forming. The concept uses malleable sheets of heated aluminum 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.

The Technology Behind MUON

Since its production, KEF engineers have explored new ways of extracting even more detail and refinement from key KEF technologies in their continuing quest to discover innovative and superior ways of reproducing music with realism and vitality. With the emergence of another iconic KEF model, BLADE, KEF engineers were presented with an excellent opportunity of enhancing the technological prowess of MUON even further, namely through the use of the latest iteration of KEF's landmark innovation, the unique Uni-Q 'point source' driver array, and a completely redesigned crossover incorporating all of KEF's latest thinking to seamlessly integrate all of the drive units.

The effects of this careful re-engineering are impressive, and result in outstanding dynamics, precision and delivery of clearly defined, sonic imagery over a listening area no conventional speaker can rival. Now, even more so than when launched, MUON remains arguably the world's most extraordinary audio speaker ever conceived and produced, not to mention a truly contemporary art form appropriate for 21st century living. Limited to an edition of just 100 pairs, MUON is unequivocally at the apex of speaker design and technology.

Acoustical Specifications

  • MF: 1 x 125mm (5in.) Li-Mg-Al /LCP, hybrid cone
  • HF: 1 x 25mm (1in.) vented aluminum dome, featuring KEF’s unique ‘Tangerine Waveguide’
  • 4 x 250mm bass drive units with ultra-low distortion neodymium magnet systems
  • 1 x 250mm lower midrange drive unit with ultra-low distortion neodymium magnet system and response tailoring, chromed phase plug
  • 2 x 250mm rear mounted bass drivers for low frequency directivity control
  • Physical Construction
  • Enclosure constructed from 6mm, super-formed aluminum. Internally braced and critically treated with damping elements.

Technology and Design

MUON's four-way speaker system with its powerful bass drivers is one of the elements that makes it so superior. But it is also the upper mid-range and treble where some of the MUON's key technology lies in the form of the Uni-Q® drive unit array, remarkable in its construction and delivering a seamless sonic picture throughout the listening environment. KEF has also used its Acoustic Compliance Enhancement (ACE) technology, which enables them to effectively double the available volume through adsorption of air molecules by activated carbon. Find out more about ACE.

The two additional bass drivers mounted in the back of MUON help to produce a remarkably clean and open sound by dealing with room effects. Finally the 6mm thick, heavily damped aluminum shell provides a totally rigid structure that minimizes any sound-distorting vibrations.

As KEF's Head of Acoustics, Andrew Watson states 'We wanted to take our technology to the limit and develop some more along the way'. The upshot is an unparalleled loudspeaker that brings an unbelievable sound quality to music lovers and serious audiophiles.

Uni-Q® Drive Array

KEF's patented 'sit anywhere' Uni-Q driver places the tweeter in the acoustic center of the midrange cone. This allows both midrange cone and tweeter to act as a single, focused source of sound that is dispersed widely and evenly throughout the room. The practical benefit is that great sound can be experienced from anywhere in the listening environment removing the "sweet spot" effect. Find out more about Uni-Q.

Technical Specifications

  • Sensitivity:  90dB / 2.83V / 1m
  • Input Impedance:  4 Ohms
  • Frequency Response:  25Hz to 60kHz (+/- 3dB)*
  • Low Frequency Extension:  20Hz (- 6dB)*
  • High Frequency Extension:  100kHz (-10dB)
  • Maximum Output:  118dB
  • Amplifier Requirements:  100 to 400W (typical)
  • Crossover Frequencies:  120Hz, 300Hz, 2.3kHz
Useful Documents


Tweeter Composition:Aluminum Dome High Frequency
Midrange Size:10"
Midrange Composition:Neodymium Magnet System
Bass Size:(6) x 10


Crossover Type:120Hz; 300Hz; 2.3kHz
Sold As:Pair


Speaker Output Power:118 dB
Sensitivity:90dB (2.83V/1m)

Misc. Specs

Product Weight (lbs.)253
Color Finish NameSilver
Manufacturer Warranty5 Year
RMS Power Handling (Watts)400
Impedance4 Ohms
Number of Speakers2
Speaker TypeFloor-Standing Speakers
Depth (in.)15
Height (in.)78.8
Width (in.)23.6
WarningProposition 65 Warning for California Residents