The Polk Audio Signa S4 comes with upfiring tweeters that should deliver convincing Dolby Atmos sound.
If you’ve been lusting over the Sonos Arc but can’t afford the hefty price tag, the latest soundbar from Polk Audio could be an excellent cheaper alternative. The Polk Signa S4 comes with support for immersive Dolby Atmos sound – and unlike Sonos’ budget option, the Sonos Beam (Gen 2), the new Polk ‘bar features two upfiring speakers that can bounce sound off of your ceiling. This should deliver a more convincing sense of height from your film and game soundtracks – a key component in creating the sensation that sound is coming at you from every angle. Many other budget Atmos soundbars rely on digital signal processing to trick your brain into thinking the sound is truly three-dimensional; however, they’re rarely capable of matching ‘true’ Dolby Atmos speakers. Costing a very reasonable $349.99 / £329.99, the Signa S4 also comes with a wireless subwoofer to boost those bass frequencies.
