The CCM663 offers the kind of in-ceiling 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 Swirl technology for clearer performance and it can be angled towards your listening area to fine tune your sound. The whole speaker chassis is fabricated from cast aluminum for maximum rigidity and offers 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 CCM662 offers an even larger motor system for greater power handling and output. 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.