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 aluminium bass drivers allow it to pick out the subtle details of a recording, while also delivering raw power and agility.
Innovation
R Series: Born from The Reference
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.
Metamaterial Absorption TechnologyAbsorb 99% of unwanted sound
At the heart of the R Series is Metamaterial Absorption Technology (MAT™). MAT™ is a highly complex maze-like structure that absorbs 99% of the unwanted noise from the rear of the driver, eliminating the resulting distortion and providing purer, more natural sound.
Uni-Q®Sit anywhere, hear every detail
A 12th generation Uni-Q® driver array with MAT™ is found in all seven models of the R Series. Uni-Q® acts as a single point source to disperse sound more evenly through the room. The result is the elimination of the limited ‘sweet spot’, therefore allowing everybody, wherever in the room they may be, to experience and enjoy the same natural, detailed sound.
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.
Versatility
Strength and versatility 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.
Design
Beautiful by design
Driven purely by acoustics, at KEF we believe there is a certain beauty even to the internal engineering fixings. The R Series has been created to be beautiful on the outside, and these finely tuned workings are protected behind a minimal exterior designed to fit seamlessly and elegantly into any interior scheme, whether traditional, modern or contemporary.
Dedicated microfibre grilles
The R Series has been engineered to perform with or without grilles. The dedicated microfibre grilles are crafted from multiple layers of material and have a suede-like feel. With 1801 precision-cut holes for each driver, performance is ensured even when the drivers are covered. The magnetic fixings provide a secure and precise fit, in keeping with the clean styling of the R Series.
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
* Measurement per unit