Between the HW-Q800D and HW-Q990D, the HW-Q800D comes out ahead in several specs, while the HW-Q990D wins on total power. Overall, the HW-Q800D scores 55.9 and the HW-Q990D scores 74.9 on our Mars Score.
Which should you buy?
The HW-Q990D is the clear pick on raw spec strength, leading by 19.0 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 HW-Q800D 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 HW-Q990D if you care most about total power. Its strongest claims are total power.
Both ship with comparable dolby atmos, earc, subwoofer included, so those specs don't separate the two — focus on the differences below.
Bottom line: the HW-Q990D is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Samsung - HW-Q800D wins
- No decisive advantages.
Why Samsung - HW-Q990D wins
- ▲Total power — 82.22% more. 656 W vs 360 W.
Spec comparison
Audio
| Spec | Samsung - HW-Q800D | Samsung - HW-Q990D |
|---|---|---|
| Channels | 5.1.2 | 11.1.4 |
| Total power | 360 W | 656 Wlead |
| Dolby Atmosⓘ | true | true |
| DTS:X | true | true |
Connectivity
| Spec | Samsung - HW-Q800D | Samsung - HW-Q990D |
|---|---|---|
| HDMI inputs | 1 | 2lead |
| eARCⓘ | true | true |
| Subwoofer included | true | true |
Frequently asked
Spec-level deep dives
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