Bowers & Wilkins CM7 Owner's Manual page 55

Technical features
Frequency range
Frequency response
Harmonic distortion
Nominal impedance
Crossover frequencies
Recommended amplifier power
Max. recommended
cable impedance
52
CM9
Nautilus™ tube loaded aluminium dome tweeter
Kevlar® brand fibre cone FST midrange
Flowport™
Description 3-way vented-box system
Drive units 1x ø25mm (1 in) aluminium dome high-frequency
1x ø160mm (6 in) woven Kevlar® cone FST midrange
2x ø165mm (6.5 in) paper/Kevlar® cone bass
-6dB at 30Hz and 50kHz
56Hz - 22kHz ±3dB on reference axis
Dispersion Within 2dB of reference response
Horizontal:
Vertical:
Sensitivity 89dB spl (2.83V, 1m)
2nd and 3rd harmonics (90dB, 1m)
<1% 90Hz - 22kHz
<0.5% 120Hz - 20kHz
8Ω (minimum 3Ω)
350Hz, 4kHz
30W - 200W into 8Ω on unclipped programme
0.1Ω
Dimensions Height:
Width:
Depth:
Net weight 26.6kg (58.5 lb)
over 60º arc
over 10º arc
990mm (39 in) cabinet only
1025mm (40.4 in) including plinth but not feet
200mm (7.9 in) cabinet only
320mm (12.6 in) including plinth
300mm (11.8 in) cabinet only
321mm (12.6 in) inc. grille and terminals but not plinth
370mm (14.6 in) including plinth