The 274t SR surround speakers use an advanced dipole design intended to create a diffuse, involving sound field. Surround speakers provide most of the background sound cues that create the atmosphere in each movie scene. Atlantic Technology's sophisticated Frequency Enhanced dipoles "wash the walls" of your room with a diffuse, non-localizable soundfield that quickly draws you into the action, making them ideal for today's discrete digital 5.1 channel home theater systems.