KEF engineers do not believe in compromise, the R5 floorstander is compact and elegant yet it delivers music and movies with ease. The svelte R5 contains a Uni-Q with 125mm (5in.) midrange driver and 25mm (1 in.) aluminium dome tweeter for incredible detail while twin 130mm (5.25in) hybrid aluminium bass units manage the bass.
A Hi-fi World '5 Globes' award winner
“Their resolution of fine detail is superb and, with strong projection, illuminates orchestral works"
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.
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.
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.
|Design||Three-way bass reflex|
|Drive units||Uni-Q Driver Array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium cone
LF: 2 x 130mm (5.25in.) hybrid aluminium
Frequency range (-6dB)
|38Hz - 50kHz
|Frequency response (±3dB)||58Hz - 28kHz|
|Recommended amplifier power||15 - 200W|
|Nominal impedance||8Ω (min.3.2Ω)|
Dimension (H x W x D)
with terminal *
|1025 x 175 x 343.5 mm|
Dimension (H x W x D)
with terminal with Plinth *
|1071.4 x 271.6 x 343.5 mm|
|Finishes||Black Gloss / White Gloss / Walnut|