CWM8.3 D is a three-way in-wall loudspeaker, conceived to offer the very best performance for a customer requiring great sound without seeing the source. Performance is equivalent to the 804 D4 in-room speaker from the 800 Series Diamond. Its 1-inch tweeter, 5-inch midrange driver and two 7-inch bass drivers deliver clear, dynamic sound, and the stiff yet light construction ensures distortion-free sound. This Bowers & Wilkins in-wall speaker can be used either horizontally or vertically for versatile placement. Use of BB8.3W Back Box is mandatory. Fully Matrix braced, for extra rigidity and improved performance the back boxes feature bi-wireable cables that connect to the baffle electronically with a multi-pin connector. The Bowers & Wilkins CI800 Series Diamond range of custom installation speakers is engineered for discerning customers who demand great hi-fi and home cinema sound from loudspeakers that occupy minimal space. This exceptional range of in-wall and in-ceiling loudspeakers features all the key transducer technologies developed for the globally renowned 800 Series Diamond including Diamond dome tweeters, Continuum midrange drivers and Aerofoil bass cones. The result is outstanding levels of performance that once again raise the bar for custom installation loudspeakers.