Sub 4 unlocks the full power of Sonos sound to immerse you deeper in every scene and song. More info Pair Sub 4 with your Sonos soundbar or speaker for a difference you can hear and feel.1 Dual force-canceling woofers deliver pulse-pounding bass and virtually eliminate distortion. Updated with a matte finish, the iconic design looks great in your home. Set it up in minutes — just plug in the power cable and open the Sonos app. Sub 4 connects to your system over WiFi, so you can put it where it looks and fits best in the room. Stand it upright or lay it on its side and hide it under your sofa. Pair two with Arc Ultra or Arc for bass so deep and sound so cinematic, you’ll forget you’re not in an actual theater.