Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Marshall - Emberton III | Logitech - MEGABOOM 4 |
|---|---|---|
| Battery | 32 h | 20 h |
| Output power | 20 W |
Between the Emberton III and MEGABOOM 4, the Emberton III comes out ahead in battery / output power, while the MEGABOOM 4 wins on several specs. Overall, the Emberton III scores 79.3 and the MEGABOOM 4 scores 78 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (79.3 vs 78). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the Emberton III if you care most about battery / output power. The biggest gaps in its favor are battery, output power. The single most decisive one: Battery — 60.00% more. 32 h vs 20 h.
The MEGABOOM 4 similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable water resistance, low-end response, stereo pairing, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Marshall - Emberton III or Logitech - MEGABOOM 4?
Marshall - Emberton III leads the current Mars Score by 1.3 points.The more useful decision is the trade-off behind that result: compare output power, battery against the way you will actually use the product.
Choose Marshall - Emberton III if…
Marshall - Emberton III has the measurable edge on battery h, output w.
Choose Logitech - MEGABOOM 4 if…
Logitech - MEGABOOM 4 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 Marshall - Emberton III wins
- ▲Battery — 60.00% more. 32 h vs 20 h.
- ▲Output power: 20 W vs W.
Why Logitech - MEGABOOM 4 wins
- No decisive advantages.
Spec comparison
Audio
| Spec | Marshall - Emberton III | Logitech - MEGABOOM 4 |
|---|---|---|
| Output power | 20 Wlead | |
| Low-end response | 60 Hz | 60 Hz |
| Stereo pairingⓘ | true | true |
Durability
| Spec | Marshall - Emberton III | Logitech - MEGABOOM 4 |
|---|---|---|
| Water resistanceⓘ | IP67 | IP67 |
| Weight | 700 glead | 1230 g |
Battery
| Spec | Marshall - Emberton III | Logitech - MEGABOOM 4 |
|---|---|---|
| Battery | 32 hlead | 20 h |
| USB out (powerbank) | false | false |