Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
Product Strengths
- The KEF Muon has a design that maximizes audio performance and is visually appealing
- The speakers deliver a seamless midrange and full, open sound, with excellent bass and high-frequency extension
- The speaker's design provides both artwork and audio gear in one product
- The Muon is capable of neutral, tuneful, and emotive music reproduction across genres
- The speakers are agile and project vocals and detail into the room
Product Considerations
- The KEF Muon requires a large room to sound its best, with careful setup
- The speakers have a run-up period and sound better once warmed up, which may be related to the temperature of the aluminum cabinet
- Sibilance can be an issue with vocals
- Bass performance can be room-dependent, with a good room being essential
- The sweet spot for listening is less generous than some other high-end speakers
Comparisons (according to reviewers)
- The KEF Muon is comparable to the Meridian DSP 8000 loudspeakers as a competitor
- The Muon has a broad and deep soundstage, but less generous with its hot seat than Quad ESLs
Takeaway: The KEF Muon offers incredible sound quality combined with a striking design, making it a unique statement piece for those who appreciate both art and high-end audio. It can bring out the best in music.
All
Muon
reviews
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An excellent review of a great product
/
Publisher
/
3/1/2022
An excellent review of a great product
Publisher
/
3/1/2022
Video Review
Images
No items found.
Manufacturer's details
Features
Specifications
- Design: Four-way closed box floorstanding loudspeaker ACE enclosure
- Dimensions: 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
- 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
- Frequency Range: 28Hz - 45kHz (-6dB) free field
- Low Frequency Extension: 20Hz (-6dB)
- High Frequency Extension: 100kHz (-10dB)
- Maximum Output: 118dB
Manufacturer product description (from their site)
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.
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.
Overall product release timeline
Manufacturer Site
Brand highlights
We analyzed reviewers' thoughts of the brand's entire lineup—not just this product—and what stands out most is the following:
- KEF's designs prioritize a "Single Apparent Source" through coaxial driver technology, aiming for a coherent soundstage where frequencies appear to originate from a single point, enhancing realism and spatial accuracy.
- The brand incorporates "Metamaterial Absorption Technology (MAT)" into its drivers, utilizing a maze-like structure to absorb unwanted sound waves from the rear of the driver, resulting in cleaner and more defined output.
- They offer a wide range of streaming and connectivity options, with their powered loudspeakers responding to the proprietary KEF Connect app, which delivers multiple streaming services and facilitates setup and customization.
- KEF frequently collaborates with renowned industrial designers to create visually striking products that seamlessly blend into modern living spaces, balancing aesthetic appeal with acoustic performance.
Select products
Product lineup breakdown
Every KEF model is built around the Uni-Q driver, which puts the tweeter in the center of the woofer so sound leaves one point and the stereo image holds wherever you sit. The Q1 Meta has a 5.25 inch Uni-Q and fits a desk or small room. The Q Concerto Meta adds a separate 6.5 inch bass driver, so a medium room gets deeper bass while the midrange stays free for voices. The Muon, limited to 100 pair, has six 10 inch woofers that reach 20Hz in the largest rooms.
- Start here. If you want KEF's Uni-Q imaging in a small room or on a desk without spending much, the Q1 Meta is the compact entry.
- Sweet spot. The Q3 Meta gives a mid-size room a 6.5 inch Uni-Q with bass down to 49Hz, a step up in bass from the Q1 Meta, and the models above mostly add more bass drivers.
- All in. The Muon is a limited edition far beyond the Q Series in price, and for a listener with a very large room its extra bass drivers deliver much deeper, more powerful bass than any Q model.
All products from this brand
Avg. Product Price
$100,001+
Used For Sale
594
Available (Scroll Down)
Brand Popularity
1
of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
95
Founding Year
1961
Our take on the brand
KEF's idea is the Uni-Q driver, which puts the tweeter in the center of the woofer so every frequency leaves from the same point and the stereo image holds together. The British company, founded in 1961 by former BBC engineer Raymond Cooke, builds almost its whole range around it. Recent models add Metamaterial Absorption Technology, a maze-like structure that absorbs the sound coming off the back of the driver, and the LS50 Wireless II and LS60 Wireless put Uni-Q in a powered cabinet with streaming built in.
Look inside the brand
Brand Page
Our interview with the brand
What are two key technological innovations or strong opinions that differ you from other brands?
What's your approach to customer support?
What are your favorite tracks for showcasing the strength of your products?
What other products pair best with yours?
From our interview with
.
Brand page
Used
KEF
All the brand's used products, not just this one
What if you spend more?
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What competes at this price?
YG Acoustics
Sonja 3.2
161825
/
Released
2023
Sonja 3.2 is a true, reference loudspeaker, delivering the life-like, natural sound which is the hallmark of YG. Capable delicate holographic imaging while still recreating concert scale audio, it is one of the very best loudspeakers in the world.
YG Acoustics is an American speaker maker, founded in 2002, that machines its own parts on CNC equipment in Denver. Its BilletCore drivers and ForgeCore tweeters are made in-house, and Reference series enclosures are milled from aluminum. A research hub in Cambridge, UK, has its own GPU cluster, and YG's modeling includes the amplifier and room along with the speaker. The Peaks series, including the Cairn and Tor, uses HDF cabinets with constrained layer damping and hand-built crossovers. The Vantage 3 Live has amplifiers and DACs built in, so it plays without separate electronics.
Expand Details
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Our Summary
Product Strengths
- Exceptional build quality using aerospace-grade aluminum
- Creates a holographic soundstage
- Delivers every genre with exceptional clarity and authority
- The design strives to editorialize the signal as little as possible, letting the music flow
Product Considerations
- Substantial investment required
- Considerable weight—145kg per speaker
- Demands thoughtful amplifier matching, requiring a lot of power to shine
- Requires optimal room placement
Takeaway: The YG Acoustics Reference Sonja 3.2 speakers are a masterpiece of acoustic engineering, providing a realistic, precise, and effortless sound experience. If one wants to hear their favorite music at its best, these speakers could be worth the investment.
Video review
Our take on the brand
YG Acoustics is an American speaker maker, founded in 2002, that machines its own parts on CNC equipment in Denver. Its BilletCore drivers and ForgeCore tweeters are made in-house, and Reference series enclosures are milled from aluminum. A research hub in Cambridge, UK, has its own GPU cluster, and YG's modeling includes the amplifier and room along with the speaker. The Peaks series, including the Cairn and Tor, uses HDF cabinets with constrained layer damping and hand-built crossovers. The Vantage 3 Live has amplifiers and DACs built in, so it plays without separate electronics.
Product Page
Product Page
Aries Cerat
Aurora
105000
/
Released
2022
The Aurora is our newest speaker design, carrying some trickle down technology from our top model the Contendo, as well as some newly developed technologies
Aries Cerat is a Cypriot maker of tube electronics and horn speakers, founded in 2010. Designer Stavros Danos started it as a speaker and electronics development company, and its electronics began as lab tools for that work. Every DAC in the range is an R2R ladder design with a tube output stage. The Symphonia is a 3-way horn speaker with a ribbon tweeter, a compression driver midrange and a tractrix bass horn, with 101 dB efficiency. The designs include user-adjustable bias, so owners can tune the sound to their system.
Expand Details
Our Summary
Product Strengths
- Surprisingly free of horn colorations
- Very rich, present, and neutrally balanced
Product Considerations
- The reviewer was sitting too close to hear them at their best in the small room
- Looking a bit like something the Borg might have invented
Takeaway: The Aries Cerat Aurora Reference is a unique, horn-loaded speaker that sounds surprisingly good. They were considered the most interesting and novel new speaker at the show.
Video review
Our take on the brand
Aries Cerat is a Cypriot maker of tube electronics and horn speakers, founded in 2010. Designer Stavros Danos started it as a speaker and electronics development company, and its electronics began as lab tools for that work. Every DAC in the range is an R2R ladder design with a tube output stage. The Symphonia is a 3-way horn speaker with a ribbon tweeter, a compression driver midrange and a tractrix bass horn, with 101 dB efficiency. The designs include user-adjustable bias, so owners can tune the sound to their system.
Product Page
Product Page
YG Acoustics
XX
225800
/
Released
2024
Celebrating the twentieth anniversary of YG Acoustics, XX 3 is a unique product: an ultimate performance loudspeaker that will redefine what you think is possible. Benefitting from the latest in driver and crossover technology, it offers the highest possible sound quality from a single tower design. It is an acoustic, scientific and engineering marvel.
YG Acoustics is an American speaker maker, founded in 2002, that machines its own parts on CNC equipment in Denver. Its BilletCore drivers and ForgeCore tweeters are made in-house, and Reference series enclosures are milled from aluminum. A research hub in Cambridge, UK, has its own GPU cluster, and YG's modeling includes the amplifier and room along with the speaker. The Peaks series, including the Cairn and Tor, uses HDF cabinets with constrained layer damping and hand-built crossovers. The Vantage 3 Live has amplifiers and DACs built in, so it plays without separate electronics.
Expand Details
Our Summary
Product Strengths
- Exceptional build quality
- Incredible bass
- Product is not an inferior DAC to Gordon
- Beats the Blackback at soundstage
- Connectivity options are strong
Product Considerations
- [Pricing complaints removed]
Video review
Our take on the brand
YG Acoustics is an American speaker maker, founded in 2002, that machines its own parts on CNC equipment in Denver. Its BilletCore drivers and ForgeCore tweeters are made in-house, and Reference series enclosures are milled from aluminum. A research hub in Cambridge, UK, has its own GPU cluster, and YG's modeling includes the amplifier and room along with the speaker. The Peaks series, including the Cairn and Tor, uses HDF cabinets with constrained layer damping and hand-built crossovers. The Vantage 3 Live has amplifiers and DACs built in, so it plays without separate electronics.
Product Page
Product Page
Clarisys
Auditorium
149000
/
Released
2022
Experience Clarisys Audio's Auditorium for ultimate sound quality. Boasting neodymium magnets and a double-sided bass panel, double-sided midrange, and double-sided treble. All drivers are 100% identical, giving you perfect coherence.
Clarisys Audio is a Swiss maker of ribbon loudspeakers. Its speakers use a double-sided ribbon driver held in a metal exoskeleton frame, and neodymium magnets raise their sensitivity, which makes them a natural match for tube amplifiers. The company supports its owners with community forums, a parts library and a certified pre-owned marketplace on its website. The Minuet is on our All Planar and Electrostatic Speakers list, and Clarisys also makes the Auditorium.
Expand Details
Our Summary
Product Strengths
- Experienced a 'wall of sound' from the speakers
- These speakers do not need room treatment
Product Considerations
- Extremely well-built, resulting in a thousand-pound shipping weight
- Speakers purchased at Audium come with a service, where if the buyer has issues, someone will fly to the buyer's home and fix them
Takeaway: The Audium speakers offer a phenomenal sound experience without needing extra sound treatment in the room. The build is solid, and the company will even fly to the buyer's house to fix them.
Video review
Our take on the brand
Clarisys Audio is a Swiss maker of ribbon loudspeakers. Its speakers use a double-sided ribbon driver held in a metal exoskeleton frame, and neodymium magnets raise their sensitivity, which makes them a natural match for tube amplifiers. The company supports its owners with community forums, a parts library and a certified pre-owned marketplace on its website. The Minuet is on our All Planar and Electrostatic Speakers list, and Clarisys also makes the Auditorium.
Product Page
Product Page
Stenheim
Reference Ultime Two
165000
/
Released
2021
The Reference Ultime Two is the most compact speaker in the Reference line, but it is still considerably bigger than the Alumine Five and built to a different scale. It is designed for larger spaces and to front more powerful systems, to fill big rooms with dynamic, captivating sound that covers the full bandwidth, providing deeper bass than is possible with a smaller cabinet design.
Stenheim is a Swiss loudspeaker maker that builds every model in an aluminum enclosure. Founded in 2010, the company assembles its speakers by hand in Vétroz in the Swiss Alps. Its first product, the Alumine Two, set the formula of a CNC-machined, braced aluminum cabinet with high-efficiency drivers, which use silk-dome tweeters and pulp cones tailored with suppliers such as PHL. High sensitivity and a stable impedance make the speakers a natural match for low-powered tube amplifiers. The Reference line scales the idea up for large rooms, with the Reference Statement at the top.
Expand Details
Our Summary
Product Strengths
- Exceptional build quality
- Good sound quality
- Great value for the money
- Easy to use interface
- Offers connectivity options
Product Considerations
- May not suit all listeners
- No balanced outputs
Takeaway: Overall, a solid product for the price point. It delivers good performance and offers a user-friendly experience.
Video review
Our take on the brand
Stenheim is a Swiss loudspeaker maker that builds every model in an aluminum enclosure. Founded in 2010, the company assembles its speakers by hand in Vétroz in the Swiss Alps. Its first product, the Alumine Two, set the formula of a CNC-machined, braced aluminum cabinet with high-efficiency drivers, which use silk-dome tweeters and pulp cones tailored with suppliers such as PHL. High sensitivity and a stable impedance make the speakers a natural match for low-powered tube amplifiers. The Reference line scales the idea up for large rooms, with the Reference Statement at the top.
Product Page
Product Page
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