With a 8” Cerametallic woofer and a 1” Titanium Dome Tweeter mated to a composite coated round Tractrix® horn, the PRO-180RPC brings dynamic, powerful, detailed Reference Premiere sound to your distributed audio or home theater system. Features: 8" Cerametallic Woofer 1" Titanium Dome Tweeter mated to a composite coated round Tractrix® Horn, Exclusive, modular SecureFit™ Installation System, Round and Square paintable, magnetic grilles included. The exclusive modular installation system allows for the dog legs to be engaged by hand to a preset clamping force, eliminating the possibility of over torquing, which can lead to breaking the dog leg or cracking the drywall. The speaker module is then screwed to the bezel (using machine screws instead of traditional drywall screws) for a more robust, acoustically stable installation than the competition.