R11 KEF
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.
Description
The Details
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