KEF R900 Floorstanding

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  • Sold separately
  • 25mm (1in.) vented aluminium dome
  • Twin 8-inch LF drivers
  • Three-way Bass Reflex


SKU: r900 Categories: , Brand:

Product Description

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.

The new Uni-Q MF/HF driver array is a masterpiece. Midrange response is amazingly fast and clean, thanks to a braced magnesium/aluminium alloy cone, with KEF’s Z-flex surround smoothing the transition to the front panel and a sturdy die-cast aluminium chassis that prevents resonance being transferred to the cabinet. 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-optimised dome structure so stiff that it operates pistonically over its entire working range, the upper registers are articulated with flawless precision – and to capitalise on Uni-Q’s point source characteristics, KEF’s ‘tangerine’ wave guide helps to disperse the higher frequencies evenly across a wider angle to flood the room with an intricate and refreshingly natural soundfield. Operating together as a single, perfectly integrated voice, the array as a whole delivers a sweet, accurate sound of unprecedented clarity.

Designed from the ground up, the R series is a towering leap forward that creates a new dimension in sonic authenticity.

The geometry and bracing of the enclosure optimises vibrational behavior, reducing secondary radiation from cabinet walls for a cleaner sound. Damping panels further minimize cabinet resonance and colouration.

Front baffles are clean with no visible screws. Grilles are fixed magnetically. Available in real Walnut and Rosewood veneers, or highly polished Piano Black, the R Series complements the home as much as it respects the music.

ModelR900DesignThree-way bass reflexDrive unitsUni-Q driver array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium
Bass units:
LF: 2 x 200mm (8in.) aluminiumFrequency range (-6dB)35Hz – 45kHzFrequency response (±3dB)40Hz – 28kHzCrossover frequency400Hz, 2.9kHzAmplifier requirements25 – 250 WSensitivity (2.83V/1m)90dBHarmonic distortion
2nd & 3rd harmonics (90dB, 1m)<0.4% 80Hz-20kHzMaximum output115dBNominal impedance8Ω (min. 3.7Ω)Weight29.5kg (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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