deepverified comparison
Sonos Arc Ultra vs Samsung HW-Q990D — Dolby Atmos soundbar for the living room

Top pick

The verdict
Our pick → HW-Q990D
The Samsung is a complete 11.1.4 system out of the box for less than a fully-expanded Sonos; the Arc Ultra wins only if the Sonos ecosystem and single-bar simplicity matter most.
Immersive surroundHW-Q990DEcosystem / multiroomArc UltraValueHW-Q990D
- A complete 11.1.4 system out of the box — wireless sub and real rear speakers included; the Arc Ultra needs a ~CHF 500 Sub plus two Era rears to match
- Full format and gaming support: DTS:X (the Arc Ultra lacks it) plus two HDMI 2.1 inputs with 4K/120 and VRR for consoles
- Better value now at CHF 868 for the whole system vs CHF 740 for the bar alone — discounted because its 2025 successor is out
Specifications
| Specification | Arc Ultra | HW-Q990D |
|---|---|---|
| HDMI | 1× eARC, no passthrough | eARC + 2× HDMI 2.1 in (4K/120, VRR) |
| Drivers | 14 (bar only) | 23 across 4 pieces |
| Channels | 9.1.4 (single bar) | 11.1.4 (4-piece) |
| Wireless | Wi-Fi, BT 5.3, AirPlay 2 | Wi-Fi, BT 5.2, AirPlay 2 |
| App / voice | Sonos app + Alexa; class-leading multiroom | SmartThings + Alexa; Q-Symphony |
| Price (CHF) | 740 | 868 |
| Sub & rears | Sold separately | Included (wireless) |
| Atmos / DTS:X | Atmos yes / DTS:X no | Both |
✓ marks the stronger value where it is measurable. Below the ~80 Hz crossover and for everyday use, some differences matter less than they look.