Sonos Arc Ultra vs Samsung HW-QS90H

The Sonos Arc Ultra and Samsung HW-QS90H have different strengths. You can expand either system with satellites, though only the Sonos supports adding a discrete sub. It's also worth noting that you can pair the Sonos with home speakers like the Sonos Era 100 or Era 300 if you already own them, giving you more flexibility in how you use each component. That said, the Samsung is the only one that supports DTS audio formats and HDMI In video passthrough, making it the better option for older media collections or for passing through another source device. If you don't plan on expanding either soundbar with more components, the Samsung has deeper bass extension thanks to its four woofer design, but the Sonos has much better stereo tracking and a wider soundstage, alongside a more balanced default sound.