KEF R11 right black


R11 is the flagship of the new R Series range. Boasting four 165mm (6 in.) hybrid aluminium bass drivers, R11 digs deep and retrieves an exceptionally clean and musical low-end performance.

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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.
Design Three-way bass reflex
Drive Units 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) 30Hz – 50kHz
Typical in-room Bass Response (-6dB) 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.)
Dimensions (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.)

Additional information

Weight 70 kg

Black, Walnut