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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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Driver Complements Subwoofer 2 - 6" Diameter (15.24cm) Dynamic Balance Cassini Ovals with Super Cell Aerated Polypropylene diaphragms 2 - 5" Diameter (12.70cm) Dynamic Balance Cassini Ovals with Super Cell Aerated Polypropylene diaphrams Mid/Woofer 1 - 6 1/2" Diameter (16.51cm) Dynamic Balance driver with Super Cell Aerated Polypropylene cone 1 - 5 1/4" Diameter (13.34cm) Dynamic Balance driver with Super Cell Aerated Polypropylene cone Midrange 1 - 3 1/4" Diameter (8.26cm) Dynamic Balance driver with Super Cell Aerated Polypropylene cone 1 - 3 1/4" Diameter (8.26cm) Dynamic Balance driver with Super Cell Aerated Polypropylene cone Tweeter 1 - 1" Diameter (2.54cm) Dynamic Balance Enhanced Ring Radiator Tweeter 1 - 1" Diameter (2.54cm) Dynamic Balance Ehanced Ring Radiator tweeter Electrical Overall Frequency Response 20Hz-40kHz 22Hz-40kHz Lower -3dB Limit 38Hz dB 42Hz dB Upper -3dB Limit 30kHz dB 30kHz dB Nominal Impedance compatible with 8 ohm outputs ohms compatible with 8 ohm outputs ohms Recommended Amplifier Power 20-300 w/channel 20-250 w/channel Efficiency 88 dB 88 dB Crossover Orth Crossover Orth Crossover Crossover (mid-high array) 3000Hz 2800Hz Crossover (subwoofer) 100HZ 100Hz Inputs Dual Gold-Plated Binding Posts Dual Gold-Plated Binding Posts Dimensions Cabinet Size 50 13/16" H x 9 1/2" W x 18 7/16" D (129.06cm H x 24.13cm W x 46.83cm D) 47" H x 8 5/16" W x 14 3/8" D (119.38cm H x 21.11cm W x 36.51cm D) Footprint Size 10 1/2" W x 20 5/16" D (26.67cm W x 51.59cm D) 9 1/4" W x 16 1/4" D (23.50cm W x 41.27cm D) Mounting Options floor floor Enclosure Type Sealed Sealed Enclosure Type (subwoofer) Dual PowerPort Dual PowerPort bass venting Shipping/Other Product Weight 99.20 lbs. (45.00kgs) 78.00 lbs. (35.38kgs) Shipping unit: each each Total Shipping Weight 114.70 lbs. (52.03kgs) 86.40 lbs. (39.19kgs) Speaker Warranty 5 years parts and labor (original purchaser) 5 years parts and labor (original purchaser) ALSO AVAILABLE IN "EBONY" 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
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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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Three way, bass-reflex
Sub-woofer 200 mm.
coated paper
Mid-woofer 130 mm. paper
Tweeter 28 mm. soft dome
coated silky fabric
Impedance: 6 Ohm (min. 4)
RMS Power: 120 W
MAX Power: 200 W
Efficiency: 90 dB/W/1 m
Dimensions: 325x385x1130 mm.
Net weight: 26 Kg.
Finish:
cherrywood, metallized mat grey
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Frequency Response: 48 Hz - 35 KHz Sensitivity (1W@1m): 90 dB Nominal Impedance: 8 Ohms Power Handling Single (RMS): 100 W System Power Handling (RMS): 150 W Recommended Amplifier Requirements: 20 - 150 W Maximum SPL (dBA): 108 Bass Alignment: Front and rear ported Drive Unit Complement: 2 x 100mm (4“) MMP®II cone bass/mid driver. 1 x 25mm (1“) C-CAM® gold dome tweeter External Dimensions (H x W x D): mm (inches) 1000 x 125 x 140 mm (39 3/8 x 4 15/16 x 5 1/2) (Without spikes) Weight (each): Kg (lbs) 10.2 (22 1/2) User's Manual
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