For that reason, we've spent the last few weeks living with the Sonos Arc, a genuinely excellent Dolby Atmos soundbar that I've had the pleasure of using in a variety of comparison tests over the years. It really is a pleasure to live with, too. Wide but low, it's a pretty discreet partner for a big OLED TV (particularly compared to a dedicated 7.1.4 system), and its ability to fill a room is very impressive for a single-unit system.