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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: 30 Hz - 60 kHz Sensitivity (1W@1M): 90 dB Nominal Impedance: 8 ohms Maximum S.P.L (Per pair in room): 116.8 dBA Power Handling (RMS): 200 W Recommended Amplifier Requirements (RMS): 100 - 200 W Bass Alignment: Bass reflex. HiVe port system Crossover Frequency: L.F - M.F: 790 Hz M.F - H.F: 2.3 kHz Drive Unit Compliment: 2 x 6.5" 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) 1060 x 210 x 330 mm (41 3/4 x 8 1/4 x 13 inch) Weight (each) Excluding stands: 27.2 Kg (59.9 lbs) AVAILABLE IN SIX COLOR FINISHES
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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
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Room-filling sound without a room-filling speaker cabinet. Slimmer than ever before, the 684 S2 offers an amazing combination of floorstander power, audio performance and unbeatable value.
Switching to 5-inch bass/midrange drivers from the previous 6.5-inch cones, means the 684 S2 is now significantly slimmer than its predecessor, with simultaneously improved audio performance, thanks to Bowers & Wilkins innovation. The two Kevlar cone drivers benefit from smaller voice coils to increase sensitivity.
The 5-inch drivers now also feature Anti-Resonance Plug dustcaps, technology taken from our high-end PM1 speakers, that improve pistonic movement inside the voice coil. This helps to deliver amazingly distortion-free midrange performance, all in a smaller space.
As well as slimmer, improved driver performance, the 684 S2 also features a Decoupled Double Dome tweeter. Double dome technology, brought across from the CM10, increases tweeter rigidity for a more precise sound, while the tweeter sits in a gel-filled cavity, decoupled from the surrounding cabinet - which removes resonances and vibrations, for a more natural, spacious sound.
Woven Kevlar | Yes | Crossover Tuning | Yes | Nautilus Tapering Tube | Yes | Flowport | Yes | Technical features | Decoupled Double Dome aluminium tweeter with NautilusTM tube loading
Kevlar® brand fibre cone bass/midrange drivers
FlowportTM | Description | 2-way vented-box system | Drive units | 1x ø25mm (1 in) aluminium dome high-frequency
2x ø130mm (5 in) woven Kevlar® cone bass/
midrange | Frequency range | -6dB at 45Hz and 50kHz | Frequency response | 72Hz - 22kHz ±3dB on reference axis | Dispersion | Within 2dB of reference response
Horizontal: over 60º arc
Vertical: over 10º arc | Sensitivity | 87dB spl (2.83V, 1m) | Harmonic distortion | 2nd and 3rd harmonics (90dB, 1m)
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| Magnat Monitor Supreme 802 Three Way Street Speakers Black
The Monitor Supreme 802 is the smallest floor-standing speaker in the range and offers everything we expected from the Supreme name: A compact MDF construction, precise guides and a simple design with a visually offset aperture.
The speaker, which is available in two high quality wood tones, is equipped with a 170 mm bass speaker and a 170 mm midrange speaker, with specially coated cones, which offer a very high level of dynamics in the bass category and good accuracy throughout frequency range. The 25 mm coated fabric canopy with the new tweeter flange also ensures significantly enhanced dispersion properties.
THE SERIES HAS SIGNIFICANT BENEFITS FROM THE DEVELOPMENT OF THE NEW TWEETER
All speakers are fine-tuned using the Klippel laser measurement system and are equipped with durable metal baskets and ultra-strong magnetic drivers. The woofers use a specially coated cellulose cone, which results in a significant reduction of some vibrations while reducing weight. The aim of this is to perfect the accuracy of music reproduction and achieve maximum dynamics. The floorstanding speakers in the series and the 202 feature a newly developed 25mm dome for the treble. The fabric dome, which is driven by a ferrite magnet, ensures a balanced reproduction throughout the relevant frequency range. The newly designed tweeter flange also ensures the production of a more homogeneous treble. Due to their smaller size, the 102 and the center speaker of this series are equipped with a somewhat smaller, but very high-resolution 13 mm dome.
THE LEVEL OF QUALITY IS APPEARABLE IN ALL THE SPEAKERS IN THE SERIES
The high quality crossovers used in this series are responsible for distributing the music signals to the respective speakers. These crossovers, which have an octave slope of up to 18 dB as well as phase correction, perform their tasks perfectly. The housings themselves, which are slightly tapered backwards, are a real visual and technical feature. These are made of durable MDF and have minimal tuning. Monitor Supreme speakers have an attractive black aperture and are available in two high quality wood shades (Black or Mocha). Large floor speakers are fitted with rubber or metal tips to prevent ground coordination. Solid, gold-plated screw terminals on the back of the speakers ensure a perfect connection to an amplifier - with the sole exception of the Monitor Supreme 102 due to the limited space available on the ultra-compact shelf speaker.
Basic features:
Removable fabric grille
Metal tips included
WOOFER-MIDRANGE
Woofer-midrange with low deformation, coated cellulose cone and reverse canopy
TWEETER
1” silk dome tweeter, powerful ferrite drive and new front plate for balanced reproduction and stable radiation
CONNECTIONS
Gilded screw connectors
CONSTRUCTION
Solid MDF Solid Cabinet with Rounded Edges on Front and Back
High quality wooden decoration, black diaphragm
Specifications:
Speakers: 2 X 6.5" midrange-woofer 1" tweeter
Power (RMS/MAX): 170/340 Watts
Sensitivity (2.8V / 1M): 92 dB
Resistance: 4 – 8 Ohm
Frequency Response: 22 – 40000 Hz
Crossover: 500 Hz, 3300 Hz
Recommended Amplifier Power: 30 – 340 Watt
Weight: 14 kg | 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) |
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