Did KEF Create the Ultimate Sonos Soundbar Rival for Audiophiles?

It integrates the British hi-fi brand’s iconic drivers into a Dolby Atmos-ready package.

Gray KEF soundbar with fabric-covered speakers and a circular speaker grille on a white background.

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Published December 31, 2025

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The wireless soundbar category has become the next frontier to conquer for traditional hi-fi companies, it seems, with the likes of Bowers & Wilkins, Bang & Olufsen and Sennheiser all vying to make the next great rival to Sonos’s Arc Ultra.

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But KEF’s first wireless soundbar, the XIO, is the one to stand out the most.

Modern living room with a wall-mounted flat-screen TV, green and white chairs, a wireframe side table, and a wooden shelf unit. — The KEF XIO is a plug-and-play-ready soundbar that supports Dolby Atmos.

It has a beautiful, almost frameless design that combines dual-tone fabric weave with a sandblasted aluminum top panel. More importantly, it features 12 individually amplified drivers that deliver 820 watts of immersive Dolby Atmos sound.

Modern living room with a wall-mounted flat-screen TV, black soundbar, blue sectional sofa, brown cushioned chair, and round black coffee tables on a gray rug. — The XIO is 47 inches long and is probably best suited for TVs that are 65 inches or larger.

Six of these drivers are what the famed British hi-fi manufacturer are Uni-Q MX drivers, which the brand describes as miniature versions of the Uni-Q drivers featured in its larger loudspeakers. Three are front-firing, three are up-firing.

One of the cool things with the XIO is that it’s integrated with numerous advanced technologies — KEF is a leader in wireless active loudspeaker systems, after all — one of them allowing it to detect its orientation and alternate these front-firing and up-firing drivers accordingly.

Wall-mounted flat-screen TV above a dark wood media console with a soundbar, next to a large gray vase with dried branches. — The KEF XIO comes in two different finishes, slate black or silver gray.

That’s right, the XIO is positioned differently, with the front facing a different direction depending on whether it’s wall-mounted or resting on a media console. Not many soundbars can do that and still, according to KEF, deliver a “transcendent cinematic sound experience.”