KEF Bookshelf and Tower Speakers

MUON

The MUON is the product of an ambitious design concept by visionary designer Ross Lovegrove. Combining Lovegrove’s design aesthetics with KEF’s finest engineering, this KEF Tower Speaker is fabricated from super-formed aluminum to create a shape that is devoid of sharp edges and extremely stiff.

MUON’s powerful bass drivers and the Un-Q drive unit array which delivers seamless imaging throughout the room, are just two elements that make this KEF tower speaker so superior. MUON’s powerful bass drivers are one element that makes it so superior. But it is also the upper mid-range and treble where some of the key technology lies, the Uni-Q® drive unit array which delivers seamless imaging throughout the room. KEF also uses Acoustic Compliance Enhancement (ACE) technology, this effectively doubling the available volume. MUON’s 6mm thick aluminum shell provides a totally rigid structure that minimizes sound-distorting vibrations. Inside are strengthening braces and a coating of damping compound that makes the whole unit completely inert, even when the speaker is playing loud.

SPECS:

Check out the Muon Brochure Here

BLADE

The blade is the world’s first Single Apparent Source loudspeaker, now with KEF’s innovative Metamaterial Absorption Technology (MAT). Giving a bold and striking presence, the Blade pushes the boundaries of what is possible with sound.

• Features Single Apparent Source technology: a unique technology that aims to achieve the acoustic ideal of a point source, where low, mid and high frequencies radiate from one point. It is what makes the Blade incredibly coherent, with noticeably more precise imaging.
• Blade’s four powerful low frequency drivers are mounted back-to-back to cancel out kinetic forces that might otherwise color their output, resulting in cleaner, purer sound, and astonishing low-level resonance.
• Blade’s four powerful vented bass drivers are perfectly integrated with the 12th generation Uni-Q^® with MAT™ to deliver clean, immaculately controlled bass. The crossover design in the latest Blade has been enhanced to fine-tune the signal path for maximum clarity.
• Each pair of low frequency drivers is located in its own chamber on the Blades, reducing the potential for interference between the drive units, while also reducing the need for damping, which can impair bass quality.
• Blade is available in a palette of eight finishes, created by blending five cabinet finishes with six Uni-Q^® driver cone colours. You can choose from three high-gloss cabinet finishes with corresponding Uni-Q driver cone colours: Arctic White/Champagne, Piano Black/Copper, Piano Black/Grey, and Racing Red/Grey; or from two matte satin cabinet finishes with corresponding Uni-Q driver cone colours: Charcoal Grey/Bronze, Charcoal Grey/Red, Frosted Blue/Bronze, and Frosted Blue/Blue.

Crossover frequency: 450 Hz, 2.1 kHz

Amplifier requirements: 50 – 400W

Sensitivity (2.83V/1m) :88dB

Harmonic distortion 2nd & 3rd harmonics (90dB, 1m):

<0.5% 40Hz – 100kHz
<0.2% 200Hz – 2kHz
<0.1% 2kHz – 20kHz

Maximum output (peak sound pressure level at 1m with pink noise): 116dB

Reference 3 Meta

The floor-standing Reference 3 Meta is capable of delivering a sensational sound stage for a wide range of listeners. At its heart sits the 12th generation Uni-Q^® driver array with MAT™, the latest technological development from KEF, and one which puts you solidly at the heart of the action.

SPECS:

Design: Three-way bass reflex

Drive Units:

Uni-Q driver array:
HF: 25 mm (1 in.) aluminium dome with MAT
MF: 125 mm (5 in.) aluminium cone
Bass Units:
LF: 165 mm (6.5 in.) aluminium cone

Frequency range free field (-6dB):

Short port: 40Hz -45kHz
Long port: 37Hz – 45kHz

Frequency range typical in room bass response (-6dB): 30Hz

Frequency response (±3dB): 45Hz – 35kHz

Reference 1 Meta

The reference 1 Meta is the benchmark of bookshelf speakers.

SPECS:

Design: Three-way bass reflex

Drive Units:

Uni-Q driver array:
HF: 25 mm (1 in.) aluminium dome with MAT
MF: 125 mm (5 in.) aluminium cone
Bass Units:
LF: 165 mm (6.5 in.) aluminium cone

Frequency range free field (-6dB):

Short port: 40Hz -45kHz
Long port: 37Hz – 45kHz

Frequency range typical in room bass response (-6dB): 30Hz

Frequency response (±3dB): 45Hz – 35kHz

Crossover frequency: 450 Hz, 2.1 kHz

Amplifier requirements: 50 – 200W

Sensitivity (2.83V/1m) : 85dB

Harmonic distortion 2nd & 3rd harmonics (90dB, 1m):

<0.5% 40Hz – 100kHz
<0.2% 200Hz – 2kHz
<0.1% 2kHz – 20kHz

Maximum output (peak sound pressure level at 1m with pink noise): 111dB

Impedance: 4 Ω (min. 3.2 Ω)

Weight: 18.2 kg (40.1 lbs.)

Dimensions (H x W x D)(with grille and terminal):

440 x 205 x 422 mm(17.3 x 8.1 x 16.6 in.)

Reference 4 Meta

 

The reference 4 Meta is the benchmark of  center loudspeakers. Featuring four bass drivers and 12th generation Uni-Q^® driver array with MAT™, this centre speaker (can be used as Left-Centre-Right speaker) is a revelation for clarity, detail and emotional depth.

SPECS:

Design: Three-way bass reflex

Drive Units:

Uni-Q driver array:
HF: 25 mm (1 in.) aluminium dome with MAT
MF: 125 mm (5 in.) aluminium cone
Bass units:
LF: 4 x 165 mm (6.5 in.) aluminium cone

Frequency range free field (-6dB):

Short port: 43Hz – 45kHz
Long port: 40Hz – 45kHz

Frequency range typical in room bass response (-6dB): 33Hz

Frequency response (±3dB): 48Hz – 35kHz

Weight: 37.7 kg (83.1 lbs.)

Dimension (HxWxD): 1249 x 200 x 383.5 mm (49.2 x 7.9 x 15.1 in.) with terminal*

Dimension (HxWxD): 1295.5 x 310.6 x 383.5 mm (51 x 12.2 x 15.1 in.) with terminal with Plinth*

Dimension (HxWxD): 1249 x 200 x 360 Cabinet only

Design: Three-way bass reflex

Frequency Range: 30Hz-50kHz (-6dB)

Typical In-Room Bass response: 26Hz (-6dB)

Frequency Response: 46Hz-28kHz (±3dB)

Harmonic Distortion: <0.3% 120Hz-20kHz (90dB, 1m)

Maximum Output: 113dB

Amplifier Power: 15-300W (recommended)

Nominal Impedance: 8 Ohms (min.3.2Ohms)

Drive Units:

Uni-Q Driver Array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium cone

Bass Driver

LF: 4x 165mm (6.5in.) hybrid aluminium

Crossover Frequencies: 400Hz, 2.9kHz

Finishes: Black Gloss / White Gloss / Walnut

R7

With a pair of 165mm hybrid aluminum bass drivers and a Uni-Q combining a 125mm midrange driver and 25mm aluminum dome tweeter the R7 outperforms all expectations.

SPECS: 

Design: Three-way bass reflex

Drive Units:

Q Driver Array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium cone 

Weight: 31.4 kg (69.2 lbs.)

Dimension (H X W X D):

1062 x 200 x 383.5 mm (41.8 x 7.9 x 15.1 in.) with terminal*

Dimension (H X W X D):

1108.9 x 310.6 x 383.5 mm (43.7 x 12.2 x 15.1 in.) with Plinth*

Dimension (H X W X D):

1062 x 200 x 360 Cabinet only

Crossover Frequencies: 400Hz, 2.9kHz

R5

The R5 floorstander is compact and elegant, while still delivering powerful sound.

SPECS:

Weight: 27.3 kg (60.2 lbs.)

Dimension (HxWxD):

1025 x 175 x 343.5 mm (40.4 x 6.9 x 13.5 in.) with terminal*

Dimension (HxWxD):

1071.4 x 271.6 x 343.5 mm (42.2 x 10.7 x 13.5 in.) with terminal with Plinth*

Dimension (HxWxD):

1025 x 175 x 320 Cabinet only

Design: Three-way bass reflex

R3

A true 3-way speaker the R3 has a powerful 165mm bass driver and a 125mm midrange driver with 25mm aluminum dome tweeter Uni-Q array that pushes performance to new extremes.

R2C

Built to match any of the R Series floorstanders the R2c delivers the dialogue that brings movies to life in your home.

SPECS:

Design: Three-way bass reflex

Weight: 16.9 kg (37.3 lbs.)

Dimension (H x W x D):

175 x 550 x 308.5 mm (6.9 x 21.7 x 12.1 in.) with terminal*

Dimension (H x W x D):

175 x 550 x 285 Cabinet only

Crossover Frequencies: 400Hz, 2.9kHz

Frequency Range: 64Hz-50kHz (-6dB)

R8a

The R8a works as a surround or rear speaker and can bounce sound of the ceiling to create truly cinematic scale with Dolby Atmos.

SPECS:

Design: Two-way closed Box

Weight: 4.45 kg (9.8 lbs.)

Dimension (H X W X D)

173.8 x 174.6 x 259 mm (6.8 x 6.9 x 10.2 in.) with terminal*

Dimension (H X W X D)

173.8 x 174.6 x 255 Cabinet only

Sensitivity: (2.83V/1m) 86dB

Q Series

Q Series takes cutting-edge acoustic technology from ranges including The Reference and Blade to a wider selection of people. Representing exceptional value, Q Series unlocks detail and depth in whatever you choose to listen to.

• The Uni-Q driver array places the tweeter in the centre of the midrange and bass cone, bringing the acoustic ideal of a single point source closer than ever. The result, enhanced by KEF’s ‘tangerine’ waveguide over the tweeter, is a more accurate three-dimensional sound that’s dispersed evenly throughout the room.
• With the addition of the damped tweeter loading tube providing a gentle termination of sound produced from the back of the tweeter, lower treble performance is improved dramatically and a new low-distortion inductor on the crossover provides cleaner bass.
• The Q Series reproduces the nuances of bass instruments with ease. With a larger roll surround and new suspension KEF drivers produce cleaner bass at high volumes. A new cone structure improves midrange clarity and an enhanced Auxiliary Bass Radiator (ABR) with a new
• surround and rear suspension enhances bass quality.
• Putting the Uni-Q driver in its own sealed cabinet reduces the load on the cone and increases clarity and detail while delivering cleaner bass. Midrange clarity is enhanced by driver improvements that mean the DC blocking capacitor to be eliminated from the crossover, allowing a more natural roll-off between drivers.

Q950 Floorstander Speaker

With a big bass driver, twin ABRs and Uni-Q driver array the Q950 floorstander can deliver music and cinema in full effect.

Q750

Pairing the KEF signature Uni-Q driver array with a 165mm (6.5 inch) aluminum bass driver and two matching ABRs, the Q750 delivers astonishing sound quality.

SPECS:

Weight: 16.5kg (36.4lbs)

Dimension (H x W x D): 923 x 210 x 306 mm
977 x 323 x 310 mm (with Plinth)

Design: 2.5-way bass reflex

Unit Measurement: Pair

Sensitivity: 88dB

Q550 Floorstanding Speaker

The Q550 2.5-way is far more capable than its compact size might suggest, delivering wide bandwidth and full scale with ease.

SPECS:

Weight: 14.5kg (32 lbs)

Dimension (H x W x D)

873 x 180 x 278 mm
926 x 299 x 310 mm (with Plinth)

Design: 2.5-way bass reflex

Unit Measurement: Pair

Sensitivity: 87dB (2.83V/1m)

Q350 Bookshelf Speaker

If space is limited the Q350 will not limit your musical enjoyment, a Uni-Q driver and clever port design let it open up the sound.

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