The Samsung HW-Q990F soundbar is actually a four-piece system, comprising a wireless subwoofer and two wireless rear speakers alongside the main 'bar. These are no ordinary subwoofer or rear speakers, mind you - the cubic sub deploys two meaty drivers on opposing sides to deliver cleaner, deeper, better distributed rumbles, while the compact rears add up- and side-firing channels to the usual front-facing ones. Add in the nine channels delivered with remarkable power and precision by the main soundbar and you’ve got the most complete and immersive soundstage ever heard from a soundbar.