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Flagship three-way floorstander
The largest model in the R Series combines four bass drivers and the latest generation Uni-Q for a powerful and refined sound
With hybrid aluminium bass drivers and a 12th generation Uni-Q for mid and treble the mighty R11is extremely capable. Using technology from KEF Reference it delivers clarity, finesse and serious bass.
Priced as a SINGLE speaker, please add two to your cart.


THE SCIENCE OF SOUND






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Customer Reviews
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Elegant and all-in-one systemLooks- This is hands down most beautiful speakers ever. Slim but the presence in a room is noticable and heavy too. There is a reason for being heavy because KEF put good stuff in there.
Sound- Great as stereo and so perfect that "you feel" there is a center channel, like you are in a concert. Some songs just blow your mind listening through it, like picking up details and gives you a headphone effect, for eg: Sicko mode by Travis & Drake. I listen to all genres except Hard rock and Country, so no comments on those, everything else it's amazing!
Loudness: I think you only need small amps to drive it because it's sensitive. I'm driving with a Denon av receiver, 105 watts per channel in stereo. If you calibrate through audessey and level up at 75db, you only have to go beyond 50% if you are having a party. I have never gone beyond 65% in fact because my house shakes with these stereo speakers. Great bass!
Price: First I though it's expensive with the specs in the sheet. But I was mistaken by it's real world performance. You cannot get such performing speakers for this price PERIODPosted on
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Fantastic SoundMy KEF 107/2 at 28 years old needed alot of attention. I decided they needed to go to a new home where they could be rebuilt. As a lover of the KEF sound I called a friend who also is a KEF person told him my plans he told me listen to the R11's. With the situation could not go to his house or store to listen. Took his recommendation and ordered the R11. Wow just as I stated and he told me they are fantastic meet all my criteria. Clean clear sound voices and tight natural base nothing added and nothing missing! Just a point about my wife first impression she said to me "why do you have the center channel on." I showed I did NOT the image they create is spot on. I set the up according to instruction both toed in at angle equal to the ten ft spread. Don't miss out by not hearing them. My wife and I play music all day absolutely no listening fatigue! And the blacks are really sharp! All looks are cool.
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These are Excellent speakers.The Kef R11 is a significant upgrade to almost any system. Clear sound, tight vocals, and flat balanced bass response. These speakers are perfectly poised for music and movies. I compared them to B&W and the new Martin Logan Motion XTi 60. It was a tough decision because the sound quality of all three is exceptional. I was leaning towards the Logans however made a decision base on the bass response. The only small complaint is that they sound muffled on low volume. You have to crank the capacity to get them to perform — otherwise, great speakers.
While I tend to be frugal with my spending, these speakers are work of art and worth the price.Posted on
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.I love this sound. It’s different, in a good way.
Not a rock speaker ‘ but that’s okay, I’m not into loud rock. It’s more like a Van Morrison speaker.
Really nice with vocals, and Jazz.
The only complaint is the gloss black had bubbles,but they where returned no questions asked. Also good with blue’s music.
Good clean bass.Posted on
Model | R11 |
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: 4 x 165mm (6.5in.) hybrid aluminium |
Crossover frequency | 400Hz, 2.9kHz |
Frequency range (-6dB) Typical in-room bass response (-6dB) |
30Hz - 50kHz 26Hz |
Frequency response (±3dB) | 46Hz - 28kHz |
Harmonic distortion (90dB, 1m) | <0.3% 0.3% 120Hz - 20kHz |
Maximum output | 113dB |
Amplifier power (recommended) | 15 - 300W |
Nominal Impedance | 8Ω (min.3.2Ω) |
Sensitivity (2.83V/1m) | 90dB |
Weight * | 37.7 kg (83.1 lbs.) |
Dimension (H x W x D) with terminal * |
1249 x 200 x 383.5 mm (49.2 x 7.9 x 15.1 in.) |
Dimension (H x W x D) with terminal with Plinth * |
1295.5 x 310.6 x 383.5 mm (51 x 12.2 x 15.1 in.) |
Finishes | Black Gloss / White Gloss / Walnut |
* Measurement per unit
** KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE. **

Review |
“Pleasing presence – sonically and aesthetically – remarkable realism and inter-driver coherence, high value in cost-to-performance arena…there’s a lot to love about the R11’s.” |
Year: 2019 |
Magazine / Issuing Body: the abso!ute sound |
Country of Publication: United States |
Product: R11 Floorstanding Loudspeaker |


Best High-End Speaker 2019-2020 |
KEF has been making great speakers for almost 60 years, but it’s hit a new high in style, performance and value with the new R Series. The R11 brings together all the elements of that success, from the latest generation coaxial Uni-Q driver for superb imaging and focus, anodised to match the choice of premium cabinet finishes, through to the clever microperforated grilles, which solve the old ‘on or off’ problem. The result is a slender speaker capable of a big, rich, room-filling sound packed with detail and delivering superb musical involvement, and with the style to ensure it looks every bit as impressive as it sounds. |
Year: 2019 |
Magazine / Issuing Body: EISA |
Country of Publication: United Kingdom |
Product: R11 Floorstanding Loudspeaker |


Recommended Reference Component |
“KEF’s R Series R11 speaker impressed the heck out of me. First, it’s nice to look at -- a pretty speaker of first-class fit and finish, and color-coordinated from top to bottom. Second, it’s chock full of cutting-edge technological innovation: e.g., the 12th generation of KEF’s Uni-Q driver, Shadow Flare diffraction control, and flexible port linings. But none of that would matter without the third thing: the R11 sounds even better than it looks.” |
Year: 2019 |
Magazine / Issuing Body: SoundStage! Hi-Fi |
Country of Publication: United States |
Product: R11 Floorstanding Loudspeaker |
R Series Brochure | • Open In New Window • Download |
R Series Info Sheet | • Open In New Window • Download |
R Series White Paper | • Open In New Window • Download |
R Series User Manual | • Open In New Window • Download |
Maintenance Guide for R Series Microfibre Grille | • Open In New Window • Download |
Product Drawing | • Open In New Window |
DXF File | • Download |
DWG File | • Download |