If you've been eyeing up the Sonos Arc Ultra soundbar as the ultimate upgrade for your TV – or perhaps you've already bought one – then how do you upgrade your Sonos system yet further? By adding a big ol' subwoofer, that's how.
The Sonos Sub 4 was announced when the Arc Ultra was revealed, designed as the perfect pairing to fit with Sonos' best soundbar and crank up the low-end delivery to an elevated extreme. Ideal for movies, music and, well, just about anything that wants daubs of bass.
