Between the Arc Ultra and YAS-209, the Arc Ultra comes out ahead in dolby atmos and earc, while the YAS-209 wins on subwoofer included and total power. Overall, the Arc Ultra scores 35 and the YAS-209 scores 44.3 on our Mars Score.
Which should you buy?
The YAS-209 is the clear pick on raw spec strength, leading by 9.3 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Arc Ultra if you care most about dolby atmos and earc. The biggest gaps in its favor are dolby atmos, earc.
Pick the YAS-209 if you care most about subwoofer included and total power. Its strongest claims are subwoofer included, total power.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the YAS-209 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Sonos - Arc Ultra wins
- ▲Has Dolby Atmos.
- ▲Has eARC.
Why Yamaha - YAS-209 wins
- ▲Has Subwoofer included.
- ▲Total power: 200 W vs 0 W.
Spec comparison
Audio
| Spec | Sonos - Arc Ultra | Yamaha - YAS-209 |
|---|---|---|
| Channels | 9.1.4 | 2.1 |
| Total power | 0 W | 200 Wlead |
| Dolby Atmosⓘ | truelead | false |
| DTS:X | false | false |
Connectivity
| Spec | Sonos - Arc Ultra | Yamaha - YAS-209 |
|---|---|---|
| HDMI inputs | 1 | 1 |
| eARCⓘ | truelead | false |
| Subwoofer included | false | truelead |
Frequently asked
Spec-level deep dives
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