Brands, Floorstanding Speakers, Home Audio, KEF
KEF HiFi Flagship 3-way Floorstanding Speakers (Pr) – Black Gloss (R11 Meta Black Gloss) (R11METABG)
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- Metamaterial Absorption Technology (MATTM) eliminates 99% of high-frequency distortion for pure, natural sound
- Bespoke 12th generation Uni-Q with MAT driver array for exceptional acoustic accuracy
- Refined tweeter gap damper tames resonances for improved detail
- Flexible Decoupling Chassis prevents unwanted vibrations for better clarity
- Enhanced crossover design fine-tuned the signal path for pristine, clean sound
- Seven models: R11 Meta, R7 Meta, R5 Meta, R3 Meta, R6 Meta, R2 Meta, R8 Meta
- Available in Black Gloss, White Gloss and Walnut finishes, plus an exclusive Titanium Gloss Special Edition for R7 Meta and Indigo Gloss Special Edition for R3 Meta
- Microfibre grilles offer the perfect balance between driver protection, sonic performance and aesthetics
- S3 Floor Stand for R3 Meta is available as separate item
$8,500.00 Pr.Check Availability
R11 Meta Flagship three-way floorstanding speakers
The R11 Meta is the largest floorstanding model of the R Series. For a breathtaking listening experience, its combination of 12th generation Uni-Q® driver array with MAT™ and four 6.5” hybrid aluminum bass drivers allow it to dig deep into the sound and retrieve an exceptionally clean performance.
R11 can pick out the softest details with grace and refinement, while delivering raw power and strength to fill almost any room.
- Metamaterial Absorption Technology (MAT) eliminates 99% of high-frequency distortion for pure, natural sound
- Bespoke 12th generation Uni-Q with MAT driver array for exceptional acoustic accuracy
- Refined tweeter gap damper tames resonances for improved detail
- Flexible Decoupling Chassis prevents unwanted vibrations for better clarity
- Enhanced crossover design and fine-tuned the signal path for pristine, clean sound
- Microfibre grilles offer the perfect balance between driver protection, sonic performance, and aesthetics
- Available in Black Gloss, White Gloss and Walnut finishes
Overview
R Series Meta
Since 1961, KEF’s quest to reproduce immaculate sound has led to many acoustic innovations. The Reference is a case in point. Distilling decades of experience into an acoustic performance that is nothing short of exceptional it is a design that continually sets the benchmark for loudspeakers and sound reproduction. Now the latest technological innovations have also made their way into the R Series.
Combined with bespoke technologies, the R Series makes high performance audio more versatile and accessible than ever — whether in stereo for music or in a home theatre set up. Now with the award-winning Metamaterial Absorption Technology (MAT), the range includes seven loudspeaker models, each designed and engineered to produce sound with exquisite detail and incredible insight.
KEF has developed the R Series for those who share our obsession with music perfection: pure and natural sound as it is meant to be heard.
Innovation
Metamaterial Absorption Technology
A revolutionary tool in the KEF acoustic armoury, MAT breaks completely new ground in speaker design.
Metamaterial Absorption Technology is a highly complex maze-like structure, where each of the intricate channels efficiently absorbs a specific frequency. When combined, the channels act as an acoustic black hole, absorbing 99% of the unwanted sound that comes from the rear of the tweeter, eliminating distortion and providing a more natural acoustic performance.
Metamaterials are specially developed structures that use existing materials in such a way that they exhibit new, desirable properties that are simply not found in naturally occurring substances.
A result of joint development with the Acoustic Metamaterials Group, using MAT breaks completely new ground in loudspeaker design, and demonstrates KEF’s unrelenting passion for innovation and dedication to improving the listening experience for everyone.
Uni-Q®
Sit anywhere, hear every detail.
The building block of KEF signature sound, Uni-Q technology disperses sound more evenly throughout the room. By placing the tweeter precisely at the acoustic centre of the bass/midrange cone, both act together as a single point source, eliminating the limited ‘sweet spot’ and instead allowing everybody, no matter where in the room they are sitting, to experience and enjoy the same natural, detailed sound.
The latest 12th generation Uni-Q with MAT driver array is found in all seven R Series models. The bespoke driver array is the result of decades of acoustic experience and incorporates the very latest advances in acoustic simulation and analysis. The result is a performance of breath-taking realism and accuracy.
1. Flexible decoupling chassis
Derived from The Reference, the flexible decoupling chassis is incorporated to reduce vibration and colouration. It ensures that any vibrations generated by the mid and high-frequency motor system are not transmitted to the loudspeaker cabinet.
2. Ultra-low distortion MF motor
The ultra-low distortion midrange motor design sees a copper ring embedded into the motor gap, minimising inductance and variation of inductance with coil position. This lowers the midrange THD and reduces thermal compression, leading to improved efficiency.
3. Tweeter gap damper
The tweeter gap damper has been re-engineered to strategically place two rings of porous material to tame any resonances and imperfections, greatly improving detail and clarity.
4. MAT tweeter absorber
The MAT tweeter absorber is a highly complex maze-like structure in which each
of the intricate channels efficiently absorbs a specific frequency. When combined, the channels absorb 99% of the unwanted sound from the rear of the tweeter.
of the intricate channels efficiently absorbs a specific frequency. When combined, the channels absorb 99% of the unwanted sound from the rear of the tweeter.
5. Conical waveguide
The conical waveguide that couples the tweeter dome to the new metamaterial absorber has been specifically designed for the bespoke driver based on its depth.
6. Tweeter dome
The stiffened aluminium tweeter dome that sits at the centre of the Uni-Q driver array can deliver a consistently sweet, lucid and lyrical treble at any volume.
7. Driver surround
The driver surround allows longer excursion without causing diffraction and extending the frequency range of the mid-frequency. Plus, the contours of the dome, midrange horn and surround are all computer- optimised to ensure a perfectly smooth transition to the cabinet.
8. Tangerine waveguide
The patented Tangerine Waveguide technology manages the airflow to recreate the wide, even spread of a natural sound field, dispersing the pure high-frequency imaging throughout the room.
Performance
Performance redefined
The R Series is engineered to be acoustically exceptional. Every element of the design has been precisely tuned to deliver more detail and deeper insight, recreating the exhilaration of hearing an original music performance, with all the emotion and nuance that goes with it.
A Flare for Detail
Derived from The Reference, Shadow Flare is an innovative way to cut harmful high frequency cabinet diffraction. It’s a carefully profiled transition that extends the waveguide effect of Uni-Q. The treble escapes naturally because the ‘shadow region’ stops it getting to the cabinet edges. The result is vastly improved fine detail.
Performance critical damping
A solid platform is imperative for great sound. The R Series benefits from constrained layer damping, a system that uses internal braces joined by a ‘lossy’ interface. This material converts unwanted vibration into heat, ensuring that the cabinet makes the only sound it needs to: the sound of silence.
True Bass Definition
R Series bass drivers have a two-part structure with a shallow, concave, aluminium skin atop a paper cone. This stiffness, combined with the cone’s unique geometry, achieves a piston-like movement for punch and speed. The drivers’ magnet system creates a broad and uniform magnetic field which means more impressive and impactful bass.
Flexible port for cleaner bass
We only want to hear the drivers, not the resonances or turbulence created by a bass port. The R Series ports have innovative flexible walls. Using computational fluid dynamics, the flare and profile of each port is calculated to delay the onset of turbulence and the flexible port walls prevent resonances from colouring the midrange.
Versatility
Strength in numbers
R Series offers a choice of floorstanding speakers, bookshelf speakers, centre channel speakers and accompanying home theatre models. Each one offers the finest sound KEF has ever delivered in its category, whatever the dimensions of the room or system configuration.
Stereo for Music
The R Series consists of a trio of floorstanding speakers and a bookshelf speaker to reproduce high-fidelity stereo sound for your favourite music. Discover depth and detail you never knew existed, from the scrape of a plectrum on a guitar string to the emotion and atmosphere of a live performance.
When we immerse ourselves in music, we don’t just listen to it but feel it. Then it has the power to alter our moods, to move our souls, and can be one of the greatest pleasures in life. This feeling is the driving force behind KEF’s quest to develop the ultimate loudspeaker – a goal that we have spent more than six decades in pursuit of.
You may have listened to your favorite music a thousand times or more, but through the R Series you will discover a depth and level of detail in any recording that will likely make you love it more – from the scrape of plectrum on guitar string, the changes of vibrato in a voice, to the sense of emotion and atmosphere in a live performance.
Delivering sound that is natural and accurate — the performance as intended by the artist — the R Series consists of a trio of floorstanding speakers and a bookshelf speaker. Each reproduces high-fidelity stereo sound irrespective of the dimensions of the listening space
Multi Channel Home Theatre
Enjoy cinematic sound at home. With three floorstanding speaker models, one bookshelf speaker model and two centre channel speakers to choose from, plus the additional Dolby Atmos surround speaker, different home theatre set-ups can be easily configured with the R Series.
Listen, and be there. Whether ‘there’ is a white-knuckle chase through the backstreets of Bangkok, the cacophony of nature in a tropical rainforest or the royal box at the Vienna Philharmonic – the R Series transports you, delivering an immersive, meticulously engineered soundscape that will bring your entertainment to life.
Offering high performance acoustics in room friendly dimensions, the R Series is the ideal choice for a home theatre set up. Identically sized Uni-Q arrays are deployed across all the R Series models, creating consistent sound character and making sure all the focus is on the film and not the equipment around the room.
With two centre speakers, speech and vocals are delivered with crystal clarity. Add a Dolby Atmos-enabled surround speaker and any of KEF’s class-leading subwoofers to complete the cinematic experience and take your movie enjoyment to the next level.
Design
Perfecting every detail
At KEF innovative engineering goes hand-in-hand with great design, and our product design team strives to create deceptively simple, elegant loudspeakers. While every design choice KEF makes is driven by acoustic performance, visual appeal is vitally important and the R Series proves that a loudspeaker can perfectly integrate into the room, both sonically and aesthetically.
Dedicated microfibre grilles
The R Series has been engineered to perform with or without grilles. The dedicated microfibre grilles feature 1,801 precision-cut holes for each driver, delivering the uncompromised sonic performance even when the drivers are covered. Compressed with heated pressure from multiple layers of material, they have a tactile, suede-like feel. The Magnetic fixings provide a secure and precise fit in keeping with the clean styling of the speakers themselves.
Finished to perfection
The understated design aesthetic is complemented by carefully selected colour options. Conceived to be at home in either traditional or modern interiors, each model in the R Series comes in a choice of two sleek gloss finishes: Black Gloss, White Gloss and a classic wood veneer finish: Walnut. Two models also have their own signature finish option in the form of the Titanium Gloss Special Edition for R7 Meta and the Indigo Gloss Special Edition for R3 Meta.
What’s Included
- R11 Meta loudspeakers
- Microfiber grilles
- Plinth and spike accessories
- Port bungs
- User manual and 5-year warranty
Specifications
DESIGN
Three-way bass reflex
DRIVE UNITS
Uni-Q Driver Array:
HF: 25 mm (1 in.) vented aluminium dome with MAT
MF: 125 mm (5 in.) aluminium cone
Bass Unit:
LF: 4 x 165 mm (6.5 in.) hybrid aluminium cone
HF: 25 mm (1 in.) vented aluminium dome with MAT
MF: 125 mm (5 in.) aluminium cone
Bass Unit:
LF: 4 x 165 mm (6.5 in.) hybrid aluminium cone
CROSSOVER FREQUENCY
330 Hz, 2.5 kHz
FREQUENCY RANGE (-6dB)
30 Hz – 50 kHz
TYPICAL IN-ROOM BASS RESPONSE (-6dB)
26 Hz
FREQUENCY RESPONSE (±3dB)
46 Hz – 28 kHz
HARMONIC DISTORTION (90dB, 1m)
<1% 33 Hz and above
<0.5% 80 Hz – 20 kHz
<0.5% 80 Hz – 20 kHz
MAXIMUM OUTPUT
113 dB
AMPLIFIER REQUIREMENTS
15 – 300W
NOMINAL IMPEDANCE
4 Ω (min. 3.2 Ω)
SENSITIVITY (2.83V/1m)
90 dB
WEIGHT
36.5 kg (80.5 lbs)
DIMENSION (H x W x D) WITH TERMINAL
1249 x 200 x 384 mm (49.2 x 7.9 x 15.1 in.)
DIMENSION (H x W x D) WITH TERMINAL WITH PLINTH
1296 x 311 x 384 mm (51.0 x 12.2 x 15.1 in.)
FINISHES
Black Gloss / White Gloss / Walnut
| Brand | |
|---|---|
| Colour | Black |
| Series | R11 Meta |
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