Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | LG - Éclair QP5 | LG - S90TR |
|---|---|---|
| Total power | 320 W | 570 W |
Between the Éclair QP5 and S90TR, the Éclair QP5 comes out ahead in several specs, while the S90TR wins on total power. Overall, the Éclair QP5 scores 75.1 and the S90TR scores 82.6 on our Mars Score.
Which should you buy?
The S90TR edges ahead on the Mars Score (75.1 vs 82.6), but the 7.5-point gap is small enough that the right pick comes down to which spec advantages matter to you.
The Éclair QP5 does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
Pick the S90TR if you care most about total power. Its strongest claims are total power. The single most decisive one: Total power — 78.13% more. 570 W vs 320 W.
Both ship with comparable dolby atmos, earc, subwoofer included, so those specs do not separate the two — focus on the differences below.
Bottom line: the S90TR 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 - Éclair QP5 or LG - S90TR?
LG - S90TR leads the current Mars Score by 7.5 points.The more useful decision is the trade-off behind that result: compare total power against the way you will actually use the product.
Choose LG - Éclair QP5 if…
LG - Éclair QP5 does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose LG - S90TR if…
LG - S90TR has the measurable edge on total w.
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 - Éclair QP5 wins
- No decisive advantages.
Why LG - S90TR wins
- ▲Total power — 78.13% more. 570 W vs 320 W.
Spec comparison
Audio
| Spec | LG - Éclair QP5 | LG - S90TR |
|---|---|---|
| Channels | 3.1.2 | 7.1.3 |
| Total power | 320 W | 570 Wlead |
| Dolby Atmosⓘ | true | true |
| DTS:X | false | truelead |
Connectivity
| Spec | LG - Éclair QP5 | LG - S90TR |
|---|---|---|
| HDMI inputs | 1 | 2lead |
| eARCⓘ | true | true |
| Subwoofer included | true | true |