R11

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  • Regular price €5.000,00
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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.


The Details

Specifications

WEIGHT

37.7 kg (83.1 lbs.)
 
 

DIMENSION (H X W X D)

1249 x 200 x 383.5 mm (49.2 x 7.9 x 15.1 in.) with terminal*
 
 

DIMENSION (H X W X D)

1295.5 x 310.6 x 383.5 mm (51 x 12.2 x 15.1 in.) with terminal with Plinth*
 
 

DIMENSION (H X W X D)

1249 x 200 x 360 Cabinet only
 
 

DESIGN

Three-way bass reflex

FREQUENCY RANGE

30Hz-50kHz (-6dB)

 

TYPICAL IN-ROOM BASS RESPONSE

26Hz (-6dB)
 
 

FREQUENCY RESPONSE

46Hz-28kHz (±3dB)
 
 

HARMONIC DISTORTION

<0.3% 120Hz-20kHz (90dB, 1m)
 
 

MAXIMUM OUTPUT

113dB
 
 

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
 
 

Bass Driver:

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

CROSSOVER FREQUENCIES

400Hz, 2.9kHz
 
 

FINISHES

Black Gloss / White Gloss / Walnut

 

downloads

R Series White Paper
R Series Brochure
R Series Information Sheet
R Series User Manual

 

KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE. * Measurement per unit

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