Bowers & Wilkins CM9 Owner's Manual page 44

Technical features
Frequency range
Frequency response
Harmonic distortion
Nominal impedance
Crossover frequencies
Recommended amplifier power
Max. recommended cable impedance
44
CM7
Nautilus
Kevlar ®
Flowport
Description 3-way vented-box system
Drive units 1x ø25mm (1 in) aluminium dome high-frequency
1x ø130mm (5 in) woven Kevlar
1x ø165mm (6.5 in) paper/Kevlar
-6dB at 34Hz and 50kHz
62Hz - 22kHz ±3dB on reference axis
Dispersion Within 2dB of reference response
Horizontal: over 60
Vertical:
Sensitivity 88dB spl (2.83V, 1m)
2nd and 3rd harmonics (90dB, 1m)
<1% 100Hz - 22kHz
<0.5% 150Hz - 20kHz
8Ω (minimum 3Ω)
350Hz, 4kHz
30W - 150W into 8Ω on unclipped programme
0.1Ω
Dimensions Height: 910mm (35.8 in) (not including feet)
Width:
Depth:
Net weight 20kg (44 lb)
™ tube-loaded aluminium dome tweeter
brand fibre cone FST midrange
™
o arc
over 10 o arc
200mm (7.9 in)
300mm (11.8 in) (including grille and terminals)
® FST cone midrange
® cone bass