KEF R3 3-way Bookshelf Speakers

 
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The R3 stand mount shares the same drivers as the range topping R11 in a full range design that defies expectations. A true 3-way speaker the R3 has a powerful 165mm (6.5 in.) bass driver and a 125mm (5 in.) midrange driver with 25mm (1 in.) aluminium dome tweeter Uni-Q array that pushes performance to new extremes.

What Hi-Fi? 'Product of the Year' award winner

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"Tonally, the presentation is balanced and natural. There’s no emphasis of any particular frequency band to make the speakers sound more interesting or exciting. That’s down to the original recording. This even-handed nature means that the speakers sound right at home across a wide range of recordings, and refuse to favour any particular musical genre above another."

FULL REVIEW


KEF UNI Q Tech

Uni-Q

The evolution of KEF's Uni-Q driver reaches its 12th generation in the R Series. Using simulation and analysis tools KEF’s engineers have been able to dramatically reduce colouration by cutting resonance in the tiny gaps between Uni-Q’s elements. The result is purer and more precise sound with stronger imaging.

Kef Shadow Flare Tech

Shadow Flare

The 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.

Kef low frequency drivers

Low Frequency Drivers

R Series bass drivers have a two-part structure with a shallow concave aluminium skin atop a paper cone. Combine this stiffness with the cone’s unique geometry and you get near pistonic movement for punch and speed. KEF has also increased linearity in the magnet system which means more impressive and impactful bass.

Flexible Port Technology

When it comes to generating deep, articulate bass, port design is crucial. 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.

The R Series

At KEF the Reference Series is the home of cutting-edge technological innovation. This is the result of diligent, creative research and development by the very best engineers in the business. The new R Series benefits from many of the technologies, materials and developments created for the Reference Series.

Feel the music

When you want to forget the world and simply lose yourself in sound, R Series will take you there. At KEF, the quest to develop perfect loudspeakers has lasted more than 50 years. Like you, we don’t just want to hear music; we want to experience it, get inside it and feel part of it.

Specifications


Design Three-way bass reflex
Drive units Uni-Q Driver Array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium cone
Bass Driver:
LF: 2 x 165mm (6.5in.) hybrid aluminium

Frequency range (-6dB) 

38Hz - 50kHz
30Hz
Frequency response (±3dB) 52Hz - 28kHz
Crossover Frequency
400Hz, 2.9kHz
Maximum output 110dB
Recommended amplifier power 15 - 180W
Nominal impedance 8Ω (min.3.2Ω)
Sensitivity (2.83V/1m) 87dB
Weight 13.5 kg
Dimension (H x W x D)
with terminal *
422.2 x 199.6 x 335.5 mm
Finishes Black Gloss / White Gloss / Walnut