R900 Floorstanding Speaker
R900 Floorstanding Speaker
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.Features
Amazingly fast and clean mid-range response. Startlingly pure high frequencies. All operating as a single perfectly integrated voice to deliver sweet, accurate sounds of unprecedented clarity.KEF Uni-Q driver array is nothing short of a masterpiece. Unlike conventional speakers, the mid-range cones are rigid magnesium/aluminum constructions that reduce breakup problems. The new mid-range Z-flex surround smoothes the tweeter transition to the front baffle, which results in undistorted high frequencies.
Large voice coils increase power handling and dynamics, reducing distortion and delivering exceptional vocal clarity.
Venting the tweeters reduces pressure behind the dome, increasing midrange bandwidth and lowering distortion. Upper registers are articulated with flawless precision. KEF’s tangerine waveguide helps disperse higher frequencies evenly across a wider angle to flood the room with a sophisticated, refreshingly natural sound field.
Technical specifications
| 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: | 35Hz - 45kHz (-6dB) |
| FREQUENCY RESPONSE: | 40Hz - 28kHz (±3dB) |
| CROSSOVER FREQUENCIES: | 400Hz, 2.9kHz |
| MAXIMUM OUTPUT: | 115dB |
| AMPLIFIER REQUIREMENTS: | 25 - 250 W |
| SENSITIVITY: | 90dB (2.83V/1m) |
| HARMONIC DISTORTION | <0.4% 120Hz-20kHz (90dB, 1m) |
| NOMINAL IMPEDANCE: | 8 Ohms (min.3.7 Ohms) |
| DIMENSIONS: | 1130 x 240 x 365 mm (44.5 x 9.4 x 14.4 in.) 1181 x 359 x 388 mm (46.5 x 14.1 x 15.3 in.) with plinth |
| WEIGHT: | 29.5kg (65lbs) |
| UNIT MEASUREMENT: | Pair |
