Recommended for Arc, Arc Ultra, and Beam (Gen 2). Feel more immersed in all your entertainment, and experience breathtaking spatial audio with Dolby Atmos. Sub 4 delivers powerful bass with virtually zero distortion. The matte finish perfectly matches your paired soundbar and is designed to look good anywhere in the room. Place the rear speakers behind your seating area and feel like you’re inside the scene. Breeze through setup with help from the Sonos app. Everything connects over WiFi.