Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Marshall - Emberton III | Anker - Boom 2 Plus |
|---|---|---|
| Output power | 20 W | 140 W |
| Battery | 32 h | 20 h |
| Low-end response | 60 Hz | 45 Hz |
Between the Emberton III and Boom 2 Plus, the Emberton III comes out ahead in battery, while the Boom 2 Plus wins on output power / low-end response. Overall, the Emberton III scores 79.3 and the Boom 2 Plus scores 81.8 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (79.3 vs 81.8). 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. The biggest gaps in its favor are battery. The single most decisive one: Battery — 60.00% more. 32 h vs 20 h.
Pick the Boom 2 Plus if you care most about output power / low-end response. Its strongest claims are output power, low-end response. The single most decisive one: Output power — 600.00% more. 140 W vs 20 W.
Both ship with comparable water resistance, 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 Anker - Boom 2 Plus?
Anker - Boom 2 Plus leads the current Mars Score by 2.5 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.
Choose Anker - Boom 2 Plus if…
Anker - Boom 2 Plus has the measurable edge on output w, frequency low hz.
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.
Why Anker - Boom 2 Plus wins
- ▲Output power — 600.00% more. 140 W vs 20 W.
- ▲Low-end response — 15.00 Hz less. 45 vs 60.
Spec comparison
Audio
| Spec | Marshall - Emberton III | Anker - Boom 2 Plus |
|---|---|---|
| Output power | 20 W | 140 Wlead |
| Low-end response | 60 Hz | 45 Hzlead |
| Stereo pairingⓘ | true | true |
Durability
| Spec | Marshall - Emberton III | Anker - Boom 2 Plus |
|---|---|---|
| Water resistanceⓘ | IP67 | IP67 |
| Weight | 700 glead | 2700 g |
Battery
| Spec | Marshall - Emberton III | Anker - Boom 2 Plus |
|---|---|---|
| Battery | 32 hlead | 20 h |
| USB out (powerbank) | false | truelead |