R11 er den største i serien. Her får du en høyttaler som låter
kraftfullt, men allikevel tar hensyn til detaljene i musikken. Bassen
leveres kontrollert og med kraft.
Nye R-serie er utstyrt med 12. generasjon Uni-Q høyttalerelement.
Uni-Q
Placing the tweeter in the acoustic centre of the midrange cone brings
the acoustic ideal of a single point source closer to realisation. The
new R Series benefits from a new 12th generation of the legendary Uni-Q
which has been extensively designed using KEF’s in-house simulation and
analysis tools. KEF’s engineers have been able to dramatically reduce
colouration through reducing resonance in the minute gaps between
Uni-Q’s separate elements. The resulting sound is purer, more precise
and makes stereo imaging far more believable.
| Model | R11 |
| Design | Three-way bass reflex |
| Drive Units | Uni-Q driver array: HF: 25mm (1in.) vented aluminium dome MF: 125mm (5in.) aluminium cone LF: 2x 165mm (6.5in.) hybrid aluminium |
| Frequency range (-6dB) | 30Hz – 50kHz |
| Frequency response (±3dB) | 46Hz – 28kHz |
| Crossover frequency | 400Hz, 2.9kHz |
| Amplifier requirements | 15 - 300 W |
| Sensitivity (2.83V/1m) |
90dB |
| Harmonic distortion 2nd & 3rd harmonics (90dB, 1m) |
<0,3% 200Hz-20kHz |
| Maximum output | 113dB |
| Nominal impedance | 8Ω (min. 3.2Ω) |
| Weight | 37.7kg |
| Dimension (H x W x D) (with grille and terminal) |
124,9 x 20,0 x 38,4 cm |
| Finishes | Available in Black gloss / White gloss / Walnut |
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