That certainly appears to be KEF’s strategy with its very first soundbar, the KEF Xio—an all-in-one Atmos soundbar that will set you back a cool $2,500 (£2,000.) So what does that kind of money get you in a soundbar, and is it worth paying the premium? You'll need a fairly large stand to fit the KEF Xio in its entirety. KEF says the bar knows how it is positioned and will adjust its driver output accordingly. Big Bar ProblemsThis is a large soundbar, stretching around 47 inches long and 10 inches deep, but only stands about 4 inches tall.