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This is a two-piece Sonos home theater bundle: the Arc Ultra soundbar paired with the Sub 4 wireless subwoofer. The Arc Ultra uses Sonos Sound Motion drivers and up-firing speakers to play Dolby Atmos height channels, while the Sub 4 handles deep bass. It suits people who want a clean, app-managed Atmos setup without rear speakers yet, and the system can grow with Sonos rear surrounds later. Against rival soundbar-plus-sub kits, it leans on Sonos's Trueplay room tuning, AirPlay 2 and multiroom ecosystem rather than HDMI passthroughs or extra inputs.
In stockSold by World Wide Stereo (Authorized)Returns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Owners of the Arc Ultra and Sub 4 generally praise the wide Atmos presentation and the depth the sub adds to movies. Common complaints center on app-dependent setup and the cost of adding rear speakers to complete the effect.
This set pairs the Sonos Arc Ultra soundbar with the Sub 4 wireless subwoofer to make a two-piece home theater in black. Rear surrounds can be added later to complete the set.
Arc Ultra uses up-firing drivers to send Dolby Atmos content to the height channels in the mix, so sound comes from overhead and around the room. It also streams Dolby Atmos Music with select songs. Sub 4 handles the low end.
The soundbar connects to a TV through HDMI eARC. It supports Wi-Fi, Bluetooth, and Apple AirPlay 2, along with voice control and touch controls. Trueplay tuning and Speech Enhancement are included.
