Bowers & Wilkins CWM7.3 s2 in Wall Speaker (single)

Bowers & Wilkins CWM7.3 s2 in Wall Speaker (single)

The CWM7.3 S2 features an integrated backbox that optimises its performance,
cuts down on sound transference through walls and also makes it easy to retrofit.
Its design incorporates twin 150mm (6in) Aerofoil profile bass drivers, a 100mm
(4in) Continuum cone FSTTM mid-range driver and a Carbon Dome 25mm (1in)
tweeter, all proven technologies shared with the acclaimed 700 Series range of
loudspeakers. These outstanding tranducers, when combined with high-quality,
optimised, components on the crossover and a critically formed baffle constructed
from glass reinforced ABS, produce a truly remarkable in-wall speaker.

Specifications:
Technical features Carbon 
Dome tweeter
Continuum cone FST midrange
Aerofoil profile bass cones
Flowport™
Description 3-way in-wall system
Drive units 
1x ø25mm (1 in) Carbon Dome high-frequency
1x ø100mm (4 in) Continuum cone FST midrange
2x ø150mm (6 in) Aerofoil profile bass
Frequency range (-6dB) -6dB at 43Hz and 33kHz
Frequency Response -3dB 45Hz - 28kHz ±3dB
Sensitivity 90dB spl (2.83Vrms, 1m)
Harmonic distortion 
2nd and 3rd harmonics (90dB, 1m)
<1% 80Hz - 33kHz
<0.5% 120Hz - 33kHz
Nominal impedance 8Ω (minimum 3.1Ω)
Recommended amplifier power 25W - 200W into 8Ω on unclipped programme
Frame height 736mm (29in)
Frame width 276mm (11in)
Depth (behind surface) 102mm (4.02in)
Cut-out height 711mm (28in)
Cut-out width 251mm (9.9in)
Cut-out height w/PMK 715mm (28.1in)
Cut-out width w/PMK 256mm (10.1in)
Reservoir box height 460mm (18.1in)
Reservoir box width 220mm (8.7in)
Protrusion 7mm (0.28in)
PMK 7.3W
Net weight 12.4kg (27.32lb)
Finishes Back box: White
Grille: White