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.
What are hifi reviews useful for? (1) Identifying products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've heard (this means they probably are legitimately great). (3) Identifying a product's attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we often discount what reviewers say because they heap praise on most products—and are often apprehensive about publishing strong criticism or comparisons between products. Further, they seldom have more than a few products on-hand, often relying on their memories to compare past products. Always listen for yourself.
All
Muon
reviews
[{"title":"Kef Muon (£70,000) | Hi-Fi News","link":"https://www.hifinews.com/content/kef-muon-%C2%A370000","source":"Hi-Fi News","datePublished":"2009"},{"title":"KEF Muon Floorstanding Loudspeaker Reviewed - HomeTheaterReview","link":"https://hometheaterreview.com/kef-muon-floorstanding-loudspeaker-reviewed","source":"Home Theater Review","datePublished":"2009"}]
An excellent review of a great product
/
Publisher
/
3/1/2022
An excellent review of a great product
Publisher
/
3/1/2022
Video Review
Manufacturer 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
Description
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.
Release Timeline
Manufacturer Site
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—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
Select product comparisons
T Series
- Positioning: The ultra-slim speaker line, designed to complement modern flat-screen TVs with a minimal footprint.
- Description: While delivering a sleek aesthetic, the flat diaphragm driver maintains rigidity and minimizes resonance, providing clean and accurate sound. However, compared to other KEF lines like the Q or R Series, it may offer less depth in bass response due to its slim design.
Q Series
- Positioning: The entry-level range offers versatile speakers suitable for both stereo and home theater setups.
- Description: Features Metamaterial Absorption Technology (MAT) and the 12th generation Uni-Q driver array, delivering detailed and natural sound. While it provides excellent value, it lacks some of the advanced damping and driver technologies found in the higher-end R and Reference Series, which offer more refined sound reproduction.
R Series
- Positioning: Bridges the gap between the entry-level Q Series and the high-end Reference Series, incorporating technologies from the latter to enhance performance.
- Description: Equipped with Metamaterial Absorption Technology (MAT) and the 12th generation Uni-Q driver array, delivers precise and immersive sound. Unlike the Q Series, it includes Shadow Flare technology to reduce cabinet diffraction, resulting in clearer high frequencies.
The Reference
- Positioning: As KEF's high-end line, sets the benchmark for audiophile-grade sound reproduction.
- Description: Incorporating Metamaterial Absorption Technology (MAT) and a 12th generation Uni-Q driver array, offers exceptional clarity and detail. It also features advanced cabinet construction and flexible port technology for cleaner bass compared to the R Series. However, it doesn't achieve the Single Apparent Source configuration found in the Blade Series, which provides even more precise imaging.
Blade Series
- Positioning: Represents KEF's innovative approach to speaker design, featuring the world's first Single Apparent Source loudspeakers.
- Description: With Metamaterial Absorption Technology (MAT) and the 12th generation Uni-Q driver array, delivers coherent and precise sound. Its unique cabinet design minimizes resonances and diffraction, surpassing the traditional enclosures of The Reference Series.
MUON
- Positioning: Stands as KEF's flagship speaker, combining cutting-edge acoustic engineering with avant-garde industrial design.
- Description: Crafted from super-formed aluminum, the rigid structure minimizes vibrations, delivering ultra-wide bandwidth and immersive sound. While it shares the Uni-Q driver array with other KEF models, its exclusive design and limited production make it a collector's item.
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Avg. Product Price
$100,001+
Used For Sale
574
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 signature Uni-Q technology places the tweeter in the center of the woofer to create a single point source for sound, while their Metamaterial Absorption Technology absorbs 99% of unwanted sound from the rear of the driver. Their Music Integrity Engine corrects timing errors in the speaker crossover, and their Shadow Flare technology reduces diffraction for improved detail and clarity in sound reproduction.
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?
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What are your favorite tracks for showcasing the strength of your products?
What other products pair best with yours?
From our interview with
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Brand Page
Used
KEF
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What if you spend more?
No items found.
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 makes speakers with unique DualCoherent crossover technology that ensures both perfect frequency response and phase coherence, while their BilletCore drivers are machined from solid aluminum billets for enhanced precision. Their modular design allows users to upgrade and expand their systems over time, and they use proprietary software that optimizes both frequency and phase response, capabilities not commonly found in other hifi brands.
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 makes speakers with unique DualCoherent crossover technology that ensures both perfect frequency response and phase coherence, while their BilletCore drivers are machined from solid aluminum billets for enhanced precision. Their modular design allows users to upgrade and expand their systems over time, and they use proprietary software that optimizes both frequency and phase response, capabilities not commonly found in other hifi brands.
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 hifi brand known for its use of oversized components and TriodeFet technology, which combines tube and solid-state designs to create a distinctive sound signature. Their products, including the Kassandra DAC and Symphonia horn speakers, are built with massive power handling capabilities and carefully selected drivers to deliver a muscular, dynamic sound that rivals top analogue systems.
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 hifi brand known for its use of oversized components and TriodeFet technology, which combines tube and solid-state designs to create a distinctive sound signature. Their products, including the Kassandra DAC and Symphonia horn speakers, are built with massive power handling capabilities and carefully selected drivers to deliver a muscular, dynamic sound that rivals top analogue systems.
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 makes speakers with unique DualCoherent crossover technology that ensures both perfect frequency response and phase coherence, while their BilletCore drivers are machined from solid aluminum billets for enhanced precision. Their modular design allows users to upgrade and expand their systems over time, and they use proprietary software that optimizes both frequency and phase response, capabilities not commonly found in other hifi brands.
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 makes speakers with unique DualCoherent crossover technology that ensures both perfect frequency response and phase coherence, while their BilletCore drivers are machined from solid aluminum billets for enhanced precision. Their modular design allows users to upgrade and expand their systems over time, and they use proprietary software that optimizes both frequency and phase response, capabilities not commonly found in other hifi brands.
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 speakers feature a unique double-sided ribbon design that enhances current flow and magnetic response, with a metal exoskeleton frame preventing the warping common in traditional ribbon speakers. The brand caters to tube amp enthusiasts through their use of Neodymium magnets for improved sensitivity, while offering DIY-friendly support and parts for vintage Apogee speaker refurbishment.
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 speakers feature a unique double-sided ribbon design that enhances current flow and magnetic response, with a metal exoskeleton frame preventing the warping common in traditional ribbon speakers. The brand caters to tube amp enthusiasts through their use of Neodymium magnets for improved sensitivity, while offering DIY-friendly support and parts for vintage Apogee speaker refurbishment.
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 hifi speaker brand known for its aluminum enclosures and minimalist, Bauhaus-inspired design that appeals to both audiophiles and art lovers. Their speakers feature high sensitivity for compatibility with low-powered tube amplifiers and use paper and fabric cone drivers for a natural sound, setting them apart from brands that use ceramic or metal drivers.
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 hifi speaker brand known for its aluminum enclosures and minimalist, Bauhaus-inspired design that appeals to both audiophiles and art lovers. Their speakers feature high sensitivity for compatibility with low-powered tube amplifiers and use paper and fabric cone drivers for a natural sound, setting them apart from brands that use ceramic or metal drivers.
Product Page
Product Page
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