Flagship three-way floorstander

Categories: , Tags:




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.


Download Brochure

Additional information


37.7 kg (83.1 lbs.)


1249 x 200 x 383.5 mm (49.2 x 7.9 x 15.1 in.) with terminal*
1295.5 x 310.6 x 383.5 mm (51 x 12.2 x 15.1 in.) with terminal with Plinth*
1249 x 200 x 360 Cabinet only


Three-way bass reflex

Frequency range

30Hz-50kHz (-6dB)

Crossover frequencies

400Hz, 2.9kHz

Typical in-room bass response

26Hz (-6dB)

Frequency response

46Hz-28kHz (±3dB)

Harmonic distortion

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

Maximum output


Amplifier power

15-300W (recommended)

Nominal impedance

8Ohms (min.3.2Ohms)

Drive units

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


Black Gloss / White Gloss / Walnut

Bass driver

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


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.