KEF R100 Speaker 2 Way 25-100W

Two-way bass reflex Drive Units Uni-Q driver array:
HF: 25mm (1in.) vented aluminium dome MF: 130mm (5.25in.) aluminium Frequency response (±3dB) 56Hz - 28kHz Amplifier requirements 25 - 100 W Sensitivity (2.83V/1m) 86dB Maximum output 107dB Nominal impedance 8Ω (min. 3.2Ω) Weight 6.6kg  Dimension (H x W x D) (with grille and terminal) 280 x 180 x 289 mmGloss Black Paint, Gloss white, Rosewood Veneer, Walnut Veneer (price per pair)

System Format: 2 Way
Frequency Response: 55 Hz - 60 kHz
Sensitivity (1W@1M): 86 dB
Nominal Impedance: 8 ohms
Maximum S.P.L
(Per pair in room): 109.8 dBA
Power Handling (RMS): 100 W
Recommended Amplifier Requirements (RMS): 50 - 100 W
Bass Alignment: Bass reflex. HiVe port system
Crossover Frequency: 2.3 kHz
Drive Unit Compliment: 1 x 5.5" RST bass/mid-range driver
1 x C-CAM H.F ribbon transducer
External Dimensions excl Stand (H x W x D)

300 x 170 x 263 mm
(11 13/16 x 6 11/16 x 10 3/8 inch)
Weight (each) Excluding stands:
7.5 Kg (16.5 lbs)

AVAILABLE IN SIX COLOR FINISHES

The M-1 has been engineered with the same design attributes and ethos as B&Wʼs larger ranges. Perhaps the most striking thing about the M-1 is the weight and strength of its curved aluminium cabinet. This is combined with a strong, glass-loaded ABS front baffle. Together they provide an excellent cabinet: the curved aluminium is stiff and the ABS offers excellent and appropriate damping characteristics.

The M-1ʼs drive units were developed by Bowers & Wilkins specifically for the design. The metal dome tweeter benefits from refinements developed for the new B&W 800 Series and includes Nautilus™ tube loading and neodymium magnets. The glass fibre bass/midrange coneʼs ability to absorb standing waves has been further enhanced by the inclusion of five strategically placed resin filled slots that further minimise distortion.

The result of this detailed cabinet and drive unit engineering has allowed B&Wʼs engineers to borrow another feature from the new 800 Series and utilise the simplest of electronic equalisation in the M-1ʼs crossover. Each of the drive units is fed by only a single, carefully selected component. This approach to crossover design, although painstaking as it relies on optimising all of the physical components in a design, is crucial in achieving its aim of neither adding to nor subtracting from the original signal.

The M-1 is available in three colour options - black, white and silver, each with chromium plated stem and table base.

Woven Kevlar    
Crossover Tuning    
Nautilus Tapering Tube    
Flowport    
Technical features     Nautilus™ tube loaded aluminium dome tweeter

Kevlar® brand fibre cone bass/midrange

Flowport™
Description     2-way vented-box system
Drive units     1x ø25mm (1 in) aluminium dome high-frequency

1x ø165mm (6.5 in) woven Kevlar® cone bass/midrange
Frequency range     -6dB at 45Hz 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     88dB spl (2.83V, 1m)
Harmonic distortion     2nd and 3rd harmonics (90dB, 1m)

16V DC on product -
2x f25mm (1.0 in) tweeter -
Amplifier power output 4x18W
Depth 100mm free standing
Description Fully active 2.0 Multimedia speaker system
Drive units 2x f75mm (3.0 in) woofers
Finish Enclosure: ABS with spun aluminium top plate
Frequency range 38Hz and 22kHz
Grilles: Black cloth -
Height 170mm free standing
Inputs 3.5mm mini jack analogue
Mini USB B 2.0 for PC connection: Streaming & software upgrades -
Net weight 0.85kg per speaker
Outputs 3.5mm mini jack Headphone output
Power input voltage 100V - 240V ac 50/60Hz on external power supply
Rated power consumption 12W (primary consumption)
Standby power consumption Width 100mm