Atlantic Technology FS-4000-BLK Front Stage Loudspeaker (Black) Left, Center and Right speakers all in one encloseure Sleek 40 inch long unit perfect for plasma and flat screen installations Low profile ideal for rear projections (3) 4.5 inch GLH woofers; (3) 1 inch soft dome tweeters Rocker base, straight and standoff wall brackets, keyhole mounts included