B&W CWM7.4 S2 In-wall Speaker (single speaker)


The new Bowers & Wilkins CWM7.4 S2 have been designed to disappear in a wall as a left & right, centre & surround speaker positions in a discreet home cinema system, CWM7.4 S2 can be mounted beside, above or below the screen, ensuring crystal-clear dialogue and dramatic special effects. This Custom in-Wall Mount speaker matches the performance of the 704 S2 Floor standing Speakers but being in-wall they are near invisible.

Thanks to Bowers & Wilkins unique QuickDog fixing method, installation is simple, requiring no tools. Its 2.5-way configuration features a single Carbon Dome tweeter, twin 100mm (4in) Continuum cone midrange units and twin 100mm (4in) Aramid Fibre/paper bass cones.


Technical Specifications

Technical features
Carbon Dome tweeter 
Continuum midrange

Aramid Fibre/Paper bass cones


2½-way in-wall system

Drive units
1x ø25mm (1 in) Carbon Dome high-frequency
2x ø100mm (4 in) Continuum cone mid/bass
2x ø100mm (4 in) Aramid Fibre/Paper profile bass
Frequency range (-6dB)

-6dB at 43Hz - 33kHz

Frequency Response -3dB

45Hz - 28kHz ±3dB


86dB spl (2.83Vrms, 1m)

Harmonic distortion
2nd and 3rd harmonics (90dB, 1m)
<1% 80Hz - 33kHz
<0.5% 120Hz - 33kHz
Nominal impedance

8Ω (minimum 4.9Ω

Recommended amplifier power

25W - 150W into 8Ω on unclipped programme

Frame height

625mm (24.6in)

Frame width

175mm (6.9in)

Depth (behind surface)

92.5mm (3.64in

Cut-out height

597mm (23.5in)

Cut-out width

147mm (23.5in)


8mm (0.3in)



Net weight

6.2kg (13.73 lb)

Grille:  White