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KEF R900 Floorstanding
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.
| 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) | |
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System Format: 3 Way Frequency Response: 35 Hz - 60 kHz Sensitivity (1W@1M): 89 dB Nominal Impedance: 8 ohms Maximum S.P.L (Per pair in room): 114.5 dBA Power Handling (RMS): 150 W Recommended Amplifier Requirements (RMS): 100 - 150 W Bass Alignment: Bass reflex. HiVe port system Crossover Frequency: L.F - M.F: 400 Hz M.F - H.F: 2.6 kHz Drive Unit Compliment: 2 x 5.5" RST bass driver 1 x 4" RST mid-range driver 1 x C-CAM H.F ribbon transducer External Dimensions excl Stand (H x W x D) 951 x 170 x 300 mm (37 7/16 x 6 11/16 x 11 13/16 inch) Weight (each) Excluding stands: 22.2 Kg (48.9 lbs)
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The CM8 is an elegantly proportioned, slimmed down version of the award-winning CM9. A true three-way loudspeaker that will appeal to discerning customers who demand the very best sound quality, but have limited space in which to achieve it.
Like all the models in the CM Series, the CM8 uses crossovers of remarkable simplicity and quality, so what you hear is that much closer to the sound of the original recording. In its functional perfection and understated elegance, itʼs nothing less than a masterpiece. Pure and simple.
All CM Series speakers come with chrome driver trims. Grilles attach magnetically, so there are no unsightly grille-mounting features to spoil the clean lines of the speakerʼs façade. For the finish, you can choose either one of two real-wood veneers in Rosenut or Wengé, the highly polished gloss black or the new stylish white.
30-200watt 8 Ohm
Dimensions: 990x200x300
ALSO AVAILABLE IN ROSENUT AND WENGE COLOR
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Recommended Usage Front Speakers
Type 3-Way Bass Reflex Design
Woofers Dual 8" PMD Cone
MidRange Driver 5" Cone With Waveguide Horn
Tweeters 1" Aluminum Dome With Waveguide Horn
Magnetic Shielding Yes
Twin Bass Reflex Ports Single Port
Gold-Plated Brass Extruded Terminals Bi-Wiring Terminals
Frequency Response 30 Hz - 35 kHz
Sensitivity 89 dB/2.83 V/1 m
Input Power (Maximum / Nominal) 250W / 100W
Impedance 6 Ohms
Product Dimensions (W x H x D) 10-7/8" x 43-5/16" x 15-3/8“
Product Weight (lbs. each) 53.7
| Two way, double series reflex
2 x Woofer 130 mm.
Coated paper, double magnet
Tweeter 26 mm.
Soft dome (silky fabric)
Impedance: 8 Ohm (min. 6,5)
RMS POWER: 100 W
MAX POWER: 150W
Efficiency: 90 dB/W/1m
Dimensions: 170x1030x220mm.
Net weight: 16 Kg.
Finish: leather and cherrywood (or walnut vinyl) |
The largest speaker in the 600 Series. This floorstander is ideal for audiophile stereo and home theatre applications in larger rooms, delivering serious performance and amazing value.
The 683 S2 features a Decoupled Double Dome tweeter - technology evolved from Bowers & Wilkins CM10 speaker. The double dome design uses an extremely thin aluminium dome for lightness, surrounded by a thicker aluminium ring for rigidity. The result is a far more precise treble performance. And while the tweeter looks like it's part of the main speaker, it's physically separated in its own gel-filled cavity, so performance isn't hit by unwanted resonances or vibrations, for a more natural, spacious sound.
Serious and accurate bass performance is equally vital to such a room-filling speaker. That's why the 683 S2 features a new bass driver construction method, using a similar method of bracing to the tweeter with twin layers of aluminium. The richer, distortion-free bass response is sumptuous.
As well as new bass driver construction techniques and a new tweeter, brought in from Bower & Wilkins high-end series, the 683 S2 also boasts an FST Kevlar midrange driver. Serious technology, serious performance, but seriously affordable for a speaker of this calibre.
Woven Kevlar | Yes | Crossover Tuning | Yes | Nautilus Tapering Tube | Yes | Flowport | Yes | Mushrooms | Yes | FST | Yes | Technical features | Decoupled Double Dome aluminium tweeter with NautilusTM tube loading
Kevlar® brand fibre cone FSTTM midrange driver
Dual-layer aluminium cone bass driver
FlowportTM | Description | 3-way vented-box system | Drive units | 1x ø25mm (1 in) aluminium dome high-frequency
1x ø150mm (6 in) woven Kevlar® cone FSTTM midrange
2x ø165mm (6.5 in) aluminium cone bass | Frequency range | -6dB at 30Hz and 50kHz | Frequency response | 52Hz - 22kHz ±3dB on reference axis | Dispersion | Within 2dB of reference response
Horizontal: over 60º arc
Vertical: over 10º arc | Sensitivity | 89dB spl (2.83V, 1m) | Harmonic distortion | 2nd and 3rd harmonics (90dB, 1m)
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