Bowers & Wilkins CM2 Owner's Manual & Warranty page 27

Technical Features
Description
Drive units
Frequency range
Frequency response
Dispersion
Sensitivity
Harmonic distortion
Nominal impedance
Crossover frequencies
Power handling
Max. recommended cable impedance
Dimensions
Net Weight
CM2
Nautilus™ tweeter
Kevlar® brand fibre cone bass/midrange
Flowport
2-way vented-box system
1x ø165mm (6.5 in) woven Kevlar® cone bass/midrange
1x ø25mm (1 in) alloy dome high-frequency
-6dB at 49Hz and 30kHz
65Hz – 20kHz ±3dB on reference axis
Within 2dB of reference response
Horizontal: over 40˚ arc
Vertical: over 10˚ arc
89dB spl (2.83V, 1m)
2nd and 3rd harmonics (90dB, 1m)
<1% 90Hz – 20kHz
<0.5% 200Hz – 15kHz
8Ω (minimum 3.6Ω)
4kHz
50W – 120W into 8Ω on unclipped programme
0.1Ω
Height: 325mm (12.8 in)
Width: 200mm (7.9 in)
Depth: 278mm (10.9 in)
8.5 kg (18.7 lb)