The two-year-old Yamaha BAR 400 is one of the least expensive soundbars around to offer high-resolution multi-room audio support, but you'll need to sacrifice other features--such as Dolby Atmos and a center channel--in the bargain. This 2.1-channel model boasts support for Yamaha's robust MultiCast multi-room audio platform and Apple's AirPlay 2, and it serves up solid 2D movie audio and top-notch music performance. But the $500 MusicCast BAR 400 lacks native support for Dolby Atmos and DTS:X support, the two leading 3D audio formats that are fast becoming de rigueur in this price range, and its DTS Virtual:X mode sounds too harsh to be a viable substitute. With its $500 price tag and support for Yamaha's high-resolution MusicCast multi-room audio system, the two-year-old Yamaha MusicCast BAR 400 is something of a throwback in Yamaha's soundbar lineup. In the past couple of years, Yamaha has focused more on budget-priced DTS Virtual:X soundbars (think $350 or less), none of which support MusicCast.