Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | LG - S95TR | Sonos - Arc Ultra |
|---|---|---|
| Subwoofer included | true | false |
| Total power | 810 W | 0 W |
Between the S95TR and Arc Ultra, the S95TR comes out ahead in subwoofer included / total power, while the Arc Ultra wins on several specs. Overall, the S95TR scores 89.5 and the Arc Ultra scores 68.3 on our Mars Score.
Which should you buy?
The S95TR is the clear pick on raw spec strength, leading by 21.2 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 S95TR if you care most about subwoofer included / total power. The biggest gaps in its favor are subwoofer included, total power. The single most decisive one: Has Subwoofer included.
The Arc Ultra similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable dolby atmos, earc, so those specs do not separate the two — focus on the differences below.
Bottom line: the S95TR is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: LG - S95TR or Sonos - Arc Ultra?
LG - S95TR leads the current Mars Score by 21.2 points.The more useful decision is the trade-off behind that result: compare total power, subwoofer included against the way you will actually use the product.
Choose LG - S95TR if…
LG - S95TR has the measurable edge on subwoofer included, total w.
Choose Sonos - Arc Ultra if…
Sonos - Arc Ultra does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why LG - S95TR wins
- ▲Has Subwoofer included.
- ▲Total power: 810 W vs 0 W.
Why Sonos - Arc Ultra wins
- No decisive advantages.
Spec comparison
Audio
| Spec | LG - S95TR | Sonos - Arc Ultra |
|---|---|---|
| Channels | 9.1.5 | 9.1.4 |
| Total power | 810 Wlead | 0 W |
| Dolby Atmosⓘ | true | true |
| DTS:X | truelead | false |
Connectivity
| Spec | LG - S95TR | Sonos - Arc Ultra |
|---|---|---|
| HDMI inputs | 2lead | 1 |
| eARCⓘ | true | true |
| Subwoofer included | truelead | false |