Ultimate Immersive Set with Arc UltraFeel more connected to all your audio content and experience Dolby Atmos content like never before. 1 The lateral and overhead channels in Arc Ultra and Era 300 envelop you in an all encompassing soundstage of crystal clear vocals and dynamic stereo separation. Sub 4 makes every high crisper and every low rumble in your chest. Breeze through setup with help from the Sonos app, and quickly fine tune your system for the room in minutes with Trueplay for