The CWM663 offers the kind of in-wall performance ordinarily reserved for high quality bookshelf speakers. Featuring a 6" woven Aramid Fiber midbass driver and Aluminum Dome Tweeter, youll experience clear, balanced sound with great driving bass. The tweeter features Nautilus Tube-loaded technology for clearer performance, an equalization switch allows fine tuning of the sound and the whole speaker chassis is fabricated from cast aluminum for maximum rigidity, offering superior performance to the plastic baskets found in mass-market designs. The Quick Dog mounting system makes installation a breeze and easy on your arms. The grill and speaker can be painted to match the surrounding surface and a paint guard is included. Looking for better performance? The CWM7.4S2 offers better driver technology and the performance of a small floor-standing speaker in your wall. Bowers & Wilkins CI600 Series of in-ceiling and in-wall speakers improves on our CI300 range by combining next-level performance with innovative features that make them a breeze to install and fine-tune for personalized sound. Looking for a step-up in performance? The CI700 Series offers improved parts quality and manufacturing techniques for improved performance.