
Sonos Arc Ultra & Sonos Sub 4 Wireless Subwoofer (White)
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A two-piece Sonos home theater set: the Arc Ultra soundbar paired with the Sub 4 wireless subwoofer. The Arc Ultra uses Sonos Sound Motion technology to produce deeper bass and clearer dialogue from a slim bar, and it supports Dolby Atmos for height effects. The Sub 4 adds dual force-canceling woofers for low-end punch with little cabinet rattle. This bundle suits people building a serious movie and music setup who want big sound without a receiver and separate speakers. Against a single premium soundbar, it delivers noticeably more bass and scale; against a full surround system with rear speakers, it still lacks true rear channels unless you add Sonos rears.
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Owners of the Arc Ultra praise its clearer dialogue and stronger bass than the original Arc, and Sub 4 buyers say the bass is deep and clean without cabinet buzz. Critics note that the bar alone still can't replace real rear speakers and that the app is required for most adjustments.
This bundle pairs the Sonos Arc Ultra soundbar with the Sonos Sub 4 wireless subwoofer, both in white. The Arc Ultra uses Sound Motion technology to deliver clear, deep, balanced sound that surrounds the listener from every direction. It has a sleek design.
The Sub 4 pairs with a Sonos soundbar or speaker to add bass for movies, TV and music. It has a matte finish and dual force-canceling woofers that virtually eliminate distortion.







