OSD Audio's Pro Series In-wall Speakers defy their low price range with features typically found in speakers retailing at double the price. Polypropylene cone woofers reproduce excellent low notes, while pivoting silk dome tweeters serve up those crisp, spine-tingling high frequencies. Popular for both home theaters and distributed audio, the Pro Series includes both traditional rectangular frames, as well as newly popular square frames. Sizes include an 8" model for larger rooms, dedicated home theaters, or rooms with high vaulted ceilings; a 6.5" model for medium to smaller size areas; and a 5.25" in-wall speaker for small rooms like dining areas and kitchens. The Pro Series also includes a dual 5.25" center channel speaker that provides remarkable front stage sound for dedicated home theaters and media rooms; and like all OSD in-wall speakers, the Pro Series includes paintable grills and easy-mount dog-ear brackets.