Between the Arc Ultra and Q85H Pro, the Arc Ultra comes out ahead in several specs, while the Q85H Pro wins on subwoofer included and total power. Overall, the Arc Ultra scores 35 and the Q85H Pro scores 70.8 on our Mars Score.
Which should you buy?
The Q85H Pro is the clear pick on raw spec strength, leading by 35.8 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.
The Arc Ultra doesn't pull ahead on any single popular-comparison spec — its strengths sit in the spec table groups rather than the headline advantages.
Pick the Q85H Pro if you care most about subwoofer included and total power. Its strongest claims are subwoofer included, total power.
Both ship with comparable dolby atmos, earc, so those specs don't separate the two — focus on the differences below.
Bottom line: the Q85H Pro 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
- No decisive advantages.
Why TCL - Q85H Pro wins
- ▲Has Subwoofer included.
- ▲Total power: 590 W vs 0 W.
Spec comparison
Audio
| Spec | Sonos - Arc Ultra | TCL - Q85H Pro |
|---|---|---|
| Channels | 9.1.4 | 5.1.2 |
| Total power | 0 W | 590 Wlead |
| Dolby Atmosⓘ | true | true |
| DTS:X | false | truelead |
Connectivity
| Spec | Sonos - Arc Ultra | TCL - Q85H Pro |
|---|---|---|
| HDMI inputs | 1 | 1 |
| eARCⓘ | true | true |
| Subwoofer included | false | truelead |
Spec-level deep dives
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