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 6" Aerofoil profile bass drivers, a 4" Continuum cone FSTmid-range driver and a Carbon Dome 1" 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 plus its own integrated backbox, produce a truly remarkable in-wall speaker. Bowers & Wilkins CI700 S2 Series of in-ceiling and in-wall speakers improves on the CI600 range by adding next generation technology such as Continuum drivers and Carbon Dome Tweeters. Upgraded materials in the cabinetry further improve performance and bring CI700 S2 closest to our in-room speakers in sound quality.