Published On: September 6, 2018

KEF Launches Revamped R Series at CEDIA Expo 2018

Published On: September 6, 2018
Last Updated on: October 31, 2020
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KEF Launches Revamped R Series at CEDIA Expo 2018

Featuring a new Uni-Q driver, reworked internals, and reconfigured driver spacing, the new R Series lineup comprises three new towers, a bookshelf, a center, and an Atmos-enabled speaker module.

KEF Launches Revamped R Series at CEDIA Expo 2018

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Today at CEDIA Expo in sunny San Diego, KEF lifted the lid on the latest iteration of its R Series loudspeakers, a top-down redesign of the speakers that borrows heavily from the company's Reference Series. Big changes include use of KEF's 12th generation Uni-Q driver, a redesigned motor system, and a repositioning of the drivers, among others. The new lineup comprises three floor-standing towers, a bookshelf speaker, a center speaker, and an Atmos-enabled speaker module.

And best of all, the new lineup is available now. For more details, read on for the full press release:

Globally-renowned audio pioneer, KEF, has announced the launch of its brand-new R Series, a complete, top-to-bottom transformation of what was already one of the world's most acclaimed loudspeaker ranges.

Boasting a hefty raft of technological innovations and design improvements, the new R Series draws on acoustic developments originally achieved in KEF's flagship Reference Series, bringing authentically high-end design features and resulting high performance levels into this category for the first time. No fewer than 1,043 individual changes have been made to the new R Series.

The latest 12th generation of KEF's Uni-Q driver is at the heart of the new range, as well as a redesigned motor system to improve the midrange, and the area between the two drivers has been completely reimagined. The design of Uni-Q necessitates a narrow gap between the drivers, which can be excited by sound waves at certain frequencies. The new structure and damping system eliminates these resonances, resulting in an even more smooth, transparent and detailed treble performance than ever before.

The Uni-Q Driver's role as a waveguide is further expanded by KEF's innovative 'Shadow Flare' trim ring design. The Shadow Flare is precision-designed to drastically reduce the diffraction effects that inevitably come from having a speaker with edges. This makes for a much clearer, more compelling and transparent sonic performance.

For the new R Series, KEF has completely re-worked the low-frequency drivers to improve performance still further, as well as managing to achieve this level of performance with smaller drivers than previously - enabling cabinets to be slimmer. The new bass drivers have greater excursion, as well as an improved low-distortion motor and a new, higher-rigidity cone. The result is a superb bass performance, with power, depth, speed and articulation in abundance.

The new R Series also utilizes an ingenious internal bracing system called Constrained Layer Damping. Originally developed for the award-winning LS50, the system uses internal braces which connect to the cabinet panels via a lossy interface (as opposed to being fixed rigidly). This is hugely effective at dissipating unwanted vibrations.

Another highly effective innovation to be included in the design of the new R Series is the flexible port design. All the ports in the R Series speakers are precisely positioned, and feature innovative flexible walls, which prevent longitudinal resonances from coloring the midrange. KEF has also used computational dynamics to very precisely calculate the flare and profile of each port, ensuring that no unwanted resonances appear that might color the low or midrange frequencies. The result is the elimination of unintended resonance - giving you the pure sound of the artist.

KEF's R Series now also benefits from a completely redesigned, suede-like, microfiber grille design, which removes the performance-compromising thick frame of most speaker grilles. The grille utilizes 1801 precision-cut holes for each driver, thus minimizing the traditional compromise between great sound and driver protection.

KEF_R_Series.jpgStephanie Scola, Director of Marketing for KEF America says, "No matter which model you select from the R Series, it will take you on a journey of re-discovery through your music and film collection. This series can reproduce music with such refinement and realism that when you close your eyes, you feel as though you're there live, in the very presence of the musician, listening from the front row. It's a very transformative experience."

The new R Series consists of the R11 ($2,499.99 each), R7 ($1,899.99 each) and R5 ($1,399.99 each) floor standers, the R3 ($1,999.99 pair) stand mount, the R2c ($1,199.99 each) center speaker and the R8a ($1,399.99 pair) Dolby Atmos-compatible speakers. All the loudspeakers in the range come in three contemporary finishes: Black Gloss, White Gloss and Walnut.

Available beginning September 6th, 2018 through and a variety of retailers including Magnolia Design Center, the new R Series displays KEF's constant commitment to improvement and evolution in audio design. Using the very latest technologies and components to prevent unwanted resonances at every level of the loudspeakers' design, the new R Series represents a new standard of performance at this level of the market.

Additional Resources
• Visit KEF's website for more product information.
• Check out our Floorstanding Speakers category page to read reviews of similar products.
• Check out our Bookshelf and Small Speakers category page to read reviews of similar products.

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