KEF R Series Speakers

Available in three beautiful finishes, see below

“A really stirring , all-around performer that enlivens the mix in this competitive price segment.” – Neil Gader, The Absolute Sound

The all-new KEF R Series presents the high-end technologies of KEF Blade in a timeless, elegant format.  Indulge in a near-Reference experience at a price that will also be music to your ears.

Testimonials

“The R-300 conveys tonal and timbral colors that are exceptional in this price range… a singer’s voice achieved a unity, a oneness, on an almost subconscious level that most compacts in this range can’t quite muster…a terrifically coherent speaker with unimpeachable driver integration.

“It’s a really stirring , all-around performer that enlivens the mix in this competitive price segment.”
 – Neil Gader, The Absolute Sound

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 “…a worthy winner and an essential audition.”
 – Hi-Fi News & Record Review – Outstanding Product 

Gorgeous looks, gorgeous sound, gorgeous package – nothing’s managed to knock this superb set-up off its perch.”
– What Hi-Fi? Sound & Vision – Best traditional package £2500-£3500 

‘These are a serious contender for high-end dedicated cinema room and will give absurd amounts of delight for years while you replace the TV every winter. They tick all the boxes: scary, pretty, cool, posh, dynamic, delicate…’
 – Home Cinema Choice – ‘High End Hero’ Award

“The result is a loudspeaker that sounds remarkably complete and uncompromised, despite its low price. In fact, calling the R500 a great-sounding speaker for the price doesn’t tell the whole story — the KEF R500 is a great-sounding loudspeaker by any measure. The fact that its price is so low simply makes it all that much better.”
 – Doug Schneider, Soundstagenetwork.com (read the review)

“I interrogated these speakers at unusual length, looking for positive and negative traits that I might translate into words. The list of positives was long and the list of negatives almost blank

But the part that was most refreshing – like a pint of good bitter made with aromatic Kentish hops – was the clean and beautifully proportioned midrange, which made voices in particular communicate at a Shakespearean level of achievement. My comfort level was high, and my emotional pleasure receptors were comprehensively stimulated…

As reproduced by the KEF R Series Speakers, the LP was timbrally, harmonically, and rhythmically ideal: as close to having a Baldwin grand in my listening room as I’ve ever heard.  The sub and speakers dovetailed beautifully at the crossover, allowing slick transitions between the pianist’s left and right hands as he roved up and down the keyboard. I’m not kidding when I say this is something I’ll remember all my life…

The KEF R Series Speakers are extraordinary loudspeakers.”
– Mark Fleischman, Home Theatre

“…stunning range, each one a star in their own right. Want Blade on a budget? Look no further – they share a lot of qualities of the Blade, but far more affordable. These will be very popular with those who put accuracy high on their list of needs.”
– Frank Harvey, WhatHiFi

KEF R Series SpeakersComplete KEF R Series Speakers

Overview

KEF R Series Speakers

The KEF R Series of speakers sit between KEF’s Q series and its Reference range, effectively replacing the XQ series. The R Series features many of KEF’s latest innovations in premium hi-fi and home theatre loudspeaker technology, making genuine audiophile standards of entertainment more affordable than ever before.

The new Uni-Q MF/HF driver arrays combine with potent new bass drivers and many ingenious refinements to create a rich, spacious sound image of such accuracy that it approaches the benchmark standards of KEF’s legendary Reference Series. Midrange response is amazingly fast and clean, thanks to a braced magnesium/aluminum alloy cone, with KEF’s Z-flex surround smoothing the transition to the front panel and a sturdy die-cast aluminum chassis that prevents resonance being transferred to the cabinet.

KEF R Series Speakers 2
R300, in 3 distinct cabinet finishes

At the acoustic centre of the midrange cone is the sophisticated vented tweeter that endows KEF Blade with such startlingly pure HF response. With a large neodymium magnet and a computer-optimized dome structure so stiff that it operates pistonically over its entire working range, the upper registers are articulated with flawless precision – and to capitalize on Uni-Q’s point source characteristics, KEF’s ‘tangerine’ waveguide helps to disperse the higher frequencies evenly across a wider angle to flood the room with an intricate and refreshingly natural sound field.

The new bass driver is equally impressive. The combination of a massive vented magnet assembly and a large, lightweight aluminum voice coil driving a light, stiff and strong hybrid cone assures clean, deep and uncompressed bass output with superb dynamics and power handling.

The cabinets’ computer-designed crossovers allow the level of each driver to be fine-tuned for a smoother, flatter response. Constrained layer damping panels prevent cabinet vibration from muddying the mid-range and bass – even the airflow through the reflex ports is managed using computational fluid dynamics to optimize acoustic integrity.

For a short informative video of the KEF R Series speakers, click here

The KEF R Series Speakers has nine models:

Three assertive floorstanders (R500, R700, R900)

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 aluminum 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.

KEF R Series Speakers 3 R500 Walnut finish

The KEF R700 exudes sophistication, with its class-leading sonic reproduction. The three-way design makes music or movie sound tracks controlled, detailed and dynamic, whilst twin 6.5-inch aluminum bass drivers deliver a fast, controlled and authoritative low end.

KEF R Series Speakers 4

R700 Rosewood finish

With twin 8-inch LF drivers positioned perfectly either side of the 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.

kefr900pair300_416R900 Black Piano finish

Two bookshelf speakers (R100, R300)

kefr100rosewood300_300R100 Rosewood finish

The KEF R100 is a masterpiece in miniaturization. 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 full range Uni-Q driver array that makes the smallest R Series bookshelf speaker an astonishing performer.

kefr300_300R300 Black Piano finish

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.

Two fully-specified centre channels (R200c, R600c)

kefr200cwalnut_300

R200c Walnut finish

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 aluminum tweeter. The result is a performance that puts you right at the centre of the action.

KEF R Series Speakers 5R600c Black Piano finish

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. 

Dipole surrounds (R800ds)

kefr800ds300_300R800ds Black Piano finish

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 localize sound field.

Matching subwoofer (R400b)

kefr400b300_300R400b Black Piano finish

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 canceling’. 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.

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Specifications

Model R500 Floorstanding
• Design: Three-way bass reflex
• Drive units: Uni-Q driver array:
HF: 25mm (1in.) vented aluminum dome
MF: 125mm (5in.) aluminum
Bass units: LF: 2 x 130mm (5.25in.) aluminum
• 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) • Maximum output: 111dB
• Nominal impedance: 8Ω (min. 3.2Ω)
• Weight: 21.8kg (48lbs.)
• Dimension (H x W x D): 1015 x 180 x 305 mm
(with grille and terminal) (40 x 7.1 x 12 in.)
• Dimension (H x W x D): 1066 x 299 x 328 mm
(with grille, terminal & plinth) (42 x 11.8 x 12.9 in.)

Model R700 Floorstanding
• Design: Three-way bass reflex
• Drive units: Uni-Q driver array:
HF: 25mm (1in.) vented aluminum dome
MF: 125mm (5in.) aluminum
Bass units: LF: 2 x 165mm (6.5in.) aluminum
• 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) • Maximum output: 113dB
• Nominal impedance: 8Ω (min. 3.2Ω)
• Weight: 25.9kg (57lbs.)
• Dimension (H x W x D): 1070 x 210 x 345 mm
(with grille and terminal) (42.1 x 8.3 x 13.6 in.)
• Dimension (H x W x D): 1121 x 329 x 368 mm
(with grille, terminal & plinth) (44.1 x 13.0 x 14.5 in.)
Model R900 Floorstanding
• Design: Three-way bass reflex
• Drive units: Uni-Q driver array:
HF: 25mm (1in.) vented aluminum dome
MF: 125mm (5in.) aluminum
Bass units: LF: 2 x 200mm (8in.) aluminum
• 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) • Maximum output: 115dB
• Nominal impedance: 8Ω (min. 3.7Ω)
• Weight: 29.5kg (65lbs.)
• Dimension (H x W x D): 1130 x 240 x 365 mm
(with grille and terminal) (44.5 x 9.4 x 14.4 in.)
• Dimension (H x W x D): 1181 x 359 x 388 mm
(with grille, terminal & plinth) (46.5 x 14.1 x 15.3 in.)
Model R100 Bookshelf
• Design: Two-way bass reflex
• Drive Units: Uni-Q driver array:
     HF: 25mm (1in.) vented aluminum dome
     MF: 130mm (5.25in.) aluminum
• 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)  
• Maximum output: 107dB
• Nominal impedance: 8Ω (min. 3.2Ω)
• Weight: 6.6kg (14.5lbs.)
• Dimension (H x W x D):  280 x 180 x 289 mm
 (with grille and terminal): (11 x 7.1 x 11.4 in.)

Model R300 Bookshelf
• Design: Two-way bass reflex
• Drive Units: Uni-Q driver array:
HF: 25mm (1in.) vented aluminum dome
MF: 130mm (5in.) aluminum
• 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)
• Maximum output: 110dB
• Nominal impedance: 8Ω (min. 3.2Ω)
• Weight:  12kg (26.4lbs.)
• Dimension (H x W x D): 385 x 210 x 345 mm
(with grille and terminal): (15.2 x 8.3 x 13.6 in.)

Model R200c Center Channel
• Design: Three-way bass reflex
• Drive Units: Uni-Q driver array:
HF: 25mm (1in.) vented aluminum dome
MF: 125mm (5in.) aluminum
Bass units: LF: 2 x 130mm (5.25in.) aluminum
• 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)
• Maximum output: 111dB
• Nominal impedance: 8Ω (min. 3.2Ω )
• Weight: 14.4kg (31.7lbs.)
• Dimension (H x W x D):  170 x 530 x 305 mm
(with grille and terminal): (6.7 x 20.9 x 12 in.)

Model R600c Center Channel
• Design: Three-way bass reflex
• Drive Units: Uni-Q driver array:
HF: 25mm (1in.) vented aluminum dome
MF: 125mm (5in.) aluminum
Bass units: LF: 2 x 165mm (6.5in.) aluminum
• 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)
• Maximum output: 113dB
• Nominal impedance:  8Ω (min. 3.2Ω )
• Weight: 17.2kg (37.9lbs.)
• Dimension (H x W x D):  200 x 630 x 335 mm
(with grille and terminal):  (7.9 x 24.8 x 13.2 in.)

Model R800ds Dipole/Surround
• Design: Three-way dipole
• Drive Units: Uni-Q driver array:
HF: 2 x 25mm (1in.) vented aluminum dome
MF: 2 x 130mm (5.25in.) aluminum
• 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)
• Maximum output: 107dB
• Nominal impedance: 8Ω (min. 3.2Ω )
• Weight: 7.4kg (16.3lbs.)
• Dimension (H x W x D): 180 x 350 x 184 mm
(with grille and terminal): (7.1 x 13.8 x 7.2 in.)

Model R400b Subwoofer
• 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 liters
• Power requirements: 100V – 120V / 220V – 240V, ~ 50 / 60Hz
• Power consumption: 600VA
• Weight: 21.5kg (47.4lbs.)
• Dimension (H x W x D): 365 x 330 x 351 mm
(with grille, terminal & plinth): (14.4 x 13 x 13.8 in.)