The 4.5 SR surround speakers use an advanced dipole design to create a diffuse, involving sound field. It's important to realize that the goal of home theater is not to make you think you're at the movies; it's to bring you into the action taking place on the screen. As such, the surround speakers are intended to provide most of the background sound cues that create the location's atmosphere. Atlantic Technology's sophisticated modified dipoles "wash the walls" of the room with a diffuse, non-localizable soundfield that quickly draws you into the action.