R900 With twin 8-inch LF drivers positioned perfectly either side of the remarkably sweet and accurate latest generation Uni-Q driver array, the KEF R900 ensures an incredible scale and depth. Upper registers are articulated with flawless precision, whilst the bass drivers maintain authoritative control over the LF - providing undistorted, earth moving realism and accuracy that will awaken your very soul.
Specifications
Model |
R900 |
Design |
Three-way bass reflex |
Drive units |
Uni-Q driver array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium
Bass units:
LF: 2 x 200mm (8in.) aluminium |
Frequency range (-6dB) |
35Hz - 45kHz |
Frequency response (±3dB) |
40Hz - 28kHz |
Crossover frequency |
400Hz, 2.9kHz |
Amplifier requirements |
25 - 250 W |
Sensitivity (2.83V/1m) |
90dB |
Harmonic distortion
2nd & 3rd harmonics (90dB, 1m) |
<0.4% 80Hz-20kHz |
Maximum output |
115dB |
Nominal impedance |
8Ω (min. 3.7Ω) |
Weight |
29.5kg (65lbs.) |
Dimension (H x W x D)
(with grille and terminal) |
1130 x 240 x 365 mm
(44.5 x 9.4 x 14.4 in.) |
Dimension (H x W x D)
(with grille, terminal & plinth) |
1181 x 359 x 388 mm
(46.5 x 14.1 x 15.3 in.) |
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R700 The KEF R700 exudes sophistication, not only in its contemporary design and use of high quality real wood and piano high gloss finishes, but in its class-leading sonic reproduction. The three-way design makes music or movie sound tracks controlled, detailed and dynamic, whilst twin 6.5-inch aluminium bass drivers deliver a fast, controlled and authoritative low end.
Specifications
Model |
R700 |
Design |
Three-way bass reflex |
Drive units |
Uni-Q driver array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium
Bass units:
LF: 2 x 165mm (6.5in.) aluminium |
Frequency range (-6dB) |
37Hz - 45kHz |
Frequency response (±3dB) |
42Hz - 28kHz |
Crossover frequency |
500Hz, 2.9kHz |
Amplifier requirements |
25 - 200 W |
Sensitivity (2.83V/1m) |
89dB |
Harmonic distortion
2nd & 3rd harmonics (90dB, 1m) |
<0.4% 100Hz-20kHz |
Maximum output |
113dB |
Nominal impedance |
8Ω (min. 3.2Ω) |
Weight |
25.9kg (57lbs.) |
Dimension (H x W x D)
(with grille and terminal) |
1070 x 210 x 345 mm
(42.1 x 8.3 x 13.6 in.) |
Dimension (H x W x D)
(with grille, terminal & plinth) |
1121 x 329 x 368 mm
(44.1 x 13.0 x 14.5 in.) |
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R500 The smallest of the three floor standers in the R Series, the KEF R500 uses the same latest generation Uni-Q driver array and two 5.25-inch aluminium bass drivers. Its slim proportions and sleek contemporary looks make it perfectly suited for any interior, making it ideal for serious stereo or multi-channel home theatre systems.
Specifications
Model |
R500 |
Design |
Three-way bass reflex |
Drive units |
Uni-Q driver array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium
Bass units: LF: 2 x 130mm (5.25in.) aluminium |
Frequency range (-6dB) |
39Hz - 45kHz |
Frequency response (±3dB) |
46Hz - 28kHz |
Crossover frequency |
500Hz, 2.8kHz |
Amplifier requirements |
25 - 150 W |
Sensitivity (2.83V/1m) |
88dB |
Harmonic distortion
2nd & 3rd harmonics (90dB, 1m) |
<0.4% 120Hz-20kHz |
Maximum output |
111dB |
Nominal impedance |
8Ω (min. 3.2Ω) |
Weight |
21.8kg (48lbs.) |
Dimension (H x W x D)
(with grille and terminal) |
1015 x 180 x 305 mm
(40 x 7.1 x 12 in.) |
Dimension (H x W x D)
(with grille, terminal & plinth) |
1066 x 299 x 328 mm
(42 x 11.8 x 12.9 in.) |
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R300 Featuring the all-new Uni-Q driver array and a 6.5-inch LF bass driver, the three-way KEF R300 lacks for nothing. Its stylishly uncluttered appearance beautifully complements the fast and clean mid-range response, along with accurate and clean low-end frequencies. With dynamic, uncompressed and undistorted LF performance, the R Series R300 provides a clarity and realism many strive to emulate but few achieve.
Specifications
Model |
R300 |
Design |
Three-way bass reflex |
Drive units |
Uni-Q driver array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium
Bass units: LF: 165mm (6.5in.) aluminium |
Frequency range (-6dB) |
42Hz - 45kHz |
Frequency response (±3dB) |
50Hz - 28kHz |
Crossover frequency |
500Hz, 2.8kHz |
Amplifier requirements |
25 - 120 W |
Sensitivity (2.83V/1m) |
88dB |
Harmonic distortion
2nd & 3rd harmonics (90dB, 1m) |
<0.4% 130Hz-20kHz |
Maximum output |
110dB |
Nominal impedance |
8Ω (min. 3.2Ω) |
Weight |
12kg (26.4lbs.) |
Dimension (H x W x D)
(with grille and terminal) |
385 x 210 x 345 mm
(15.2 x 8.3 x 13.6 in.) |
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R100 The KEF R100 is a masterpiece in miniaturisation. Fast, clean and agile, with a low-end performance you would expect from a speaker double its size or with a dedicated LF driver, the R100 has a brilliantly designed full range Uni-Q driver array that makes the smallest R Series bookshelf speaker an astonishing performer.
Specifications
Model |
R100 |
Design |
Two-way bass reflex |
Drive Units |
Uni-Q driver array:
HF: 25mm (1in.) vented aluminium dome
MF: 130mm (5.25in.) aluminium |
Frequency range (-6dB) |
49Hz - 45kHz |
Frequency response (±3dB) |
56Hz - 28kHz |
Crossover frequency |
2.5kHz |
Amplifier requirements |
25 - 100 W |
Sensitivity (2.83V/1m) |
86dB |
Harmonic distortion
2nd & 3rd harmonics (90dB, 1m) |
<0.4% 150Hz-20kHz |
Maximum output |
107dB |
Nominal impedance |
8Ω (min. 3.2Ω) |
Weight |
6.6kg (14.5lbs.) |
Dimension (H x W x D)
(with grille and terminal) |
280 x 180 x 289 mm (11 x 7.1 x 11.4 in.) |
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R600c The KEF R600c is the larger of the two centre channel speakers, yet the design ensures the slimmest possible profile for ease of placement in racks and under screens. What's more, because of the D'Appolito driver configuration, the R600c can also be used in LCR positions. The R600c will immerse you in true surround sound, helping place you at the very heart of the action with a level of clarity, precision and sophistication that will make any music or movie sound as though you're at the concert or amidst the action.
Specifications
Model |
R600c |
Design |
Three-way bass reflex |
Drive Units |
Uni-Q driver array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium
Bass units: LF: 2 x 165mm (6.5in.) aluminium |
Frequency range (-6dB) |
50Hz - 45kHz |
Frequency response (±3dB) |
60Hz - 28kHz |
Crossover frequency |
500Hz, 2.9kHz |
Amplifier requirements |
25 - 200 W |
Sensitivity (2.83V/1m) |
89dB |
Harmonic distortion
2nd & 3rd harmonics (90dB, 1m) |
<0.4% 100Hz-20kHz |
Maximum output |
113dB |
Nominal impedance |
8Ω (min. 3.2Ω) |
Weight |
17.2kg (37.9lbs.) |
Dimension (H x W x D)
(with grille and terminal) |
200 x 630 x 335 mm (7.9 x 24.8 x 13.2 in.) |
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R200c The perfect partner for R100 or R500 home theatre systems, the KEF R200c has a three way design incorporating twin 5.25-inch bass drivers and a 5-inch MF Uni-Q driver array that features a 1-inch aluminium tweeter. The result is a performance that puts you right at the centre of the action. With detail, precision and effortless timing, the R200c will handle with ease the most dramatic and thunderous sound tracks or music scores. Whispers or heart-pounding action will have a clarity you've never before experienced!
Specifications
Model |
R200c |
Design |
Three-way bass reflex |
Drive Units |
Uni-Q driver array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium
Bass units: LF: 2 x 130mm (5.25in.) aluminium |
Frequency range (-6dB) |
52Hz - 45kHz |
Frequency response (±3dB) |
65Hz - 28kHz |
Crossover frequency |
500Hz, 2.8kHz |
Amplifier requirements |
25 - 150 W |
Sensitivity (2.83V/1m) |
87dB |
Harmonic distortion
2nd & 3rd harmonics (90dB, 1m) |
<0.4% 120Hz-20kHz |
Maximum output |
111dB |
Nominal impedance |
8Ω (min. 3.2Ω ) |
Weight |
14.4kg (31.7lbs.) |
Dimension (H x W x D)
(with grille and terminal) |
170 x 530 x 305 mm (6.7 x 20.9 x 12 in.) |
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R800ds If you're serious about home theatre, the KEF R800ds provides exceptional surround capabilities. The twin 5-inch Uni-Q driver arrays work out of phase to create a remarkable, hard to localise sound field. This results in stunning dynamic sonic effects that help put you at the heart of the action.
Specifications
Model |
R800ds |
Design |
Three-way dipole |
Drive Units |
Uni-Q driver array:
HF: 2 x 25mm (1in.) vented aluminium dome
MF: 2 x 130mm (5.25in.) aluminium |
Frequency range (-6dB) |
90Hz - 45kHz |
Frequency response (±3dB) |
100Hz - 28kHz |
Crossover frequency |
300Hz, 2.5kHz |
Amplifier requirements |
25 - 100 W |
Sensitivity (2.83V/1m) |
85dB |
Harmonic distortion
2nd & 3rd harmonics (90dB, 1m) |
<0.4% 150Hz-20kHz |
Maximum output |
107dB |
Nominal impedance |
8Ω (min. 3.2Ω ) |
Weight |
7.4kg (16.3lbs.) |
Dimension (H x W x D)
(with grille and terminal) |
180 x 350 x 184 mm
(7.1 x 13.8 x 7.2 in.) |
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R400b At just 31 inches square, the KEF R400b may be compact, yet it packs an incredible punch. With a reinforced and braced sealed cabinet, the R400b houses twin 9-inch LF drivers powered by twin 250W class-D amplifiers. The drivers are mounted back-to-back, to create 'force cancelling'. This means the opposing reactive forces are nullified, resulting in no cabinet agitation and a clean, fast, powerful bass performance - perfect for any serious home theatre system.
Specifications
Model |
R400b |
Design |
Powered Subwoofer (Sealed) |
Drive Units |
Bass units:
LF: 2 x 225mm (9in.) |
Frequency range (-6dB) |
26Hz - 140Hz |
Maximum output |
111dB |
Amplifier |
2 x 250W (500W)
built-in Class-D |
Low pass filter Variable |
40Hz - 140Hz, 4th-order |
Low level signal inputs |
RCA phono sockets |
Internal volume |
22 litres |
Power requirements |
100V - 120V / 220V - 240V
~ 50 / 60Hz |
Power consumption |
600VA |
Weight |
21.5kg (47.4lbs.) |
Dimension (H x W x D)
(with grille, terminal & plinth) |
365 x 330 x 351 mm
(14.4 x 13 x 13.8 in.) |
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