Bowers & Wilkins CCM816 Manuel D'utilisation page 52

Technical features
Frequency range
Frequency response
Nominal impedance
Crossover frequency
Recommended amplifier power
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CCM816
Angled tweeter and bass/mid driver
Woven Kevlar® bass/midrange driver
Nautilus™ tube-loaded tweeter
Description 2-way in-ceiling/wall speaker system
Drive units 1x ø25mm (1 in) black anodised tube-loaded aluminium
dome high-frequency
1x ø165mm (6.5 in) woven blue Kevlar® cone bass/midrange
-6dB at 45Hz and 45kHz
49Hz-22kHz ±3dB on reference axis
Sensitivity 88dB spl (2.83V, 1m)
8Ω (minimum 4.7Ω)
3.5kHz
150W continuous into 8Ω on unclipped programme
Frame size Diameter: 228mm (9in)
Cut-out size Diameter: 207mm (8.1in)
Min depth req 148mm (5.8in) in front of ceiling surface
Net weight 2.7kg (4lb)
Finish Semi-matt white suitable for customising or pre-painting
Accessories PMK C6
BB C6