Between the Xtreme 4 and Emberton III, the Xtreme 4 comes out ahead in output power and low-end response, while the Emberton III wins on battery. Overall, the Xtreme 4 scores 73.9 and the Emberton III scores 66.8 on our Mars Score.
Which should you buy?
The Xtreme 4 edges ahead on the Mars Score (73.9 vs 66.8), but the 7.1-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Xtreme 4 if you care most about output power and low-end response. The biggest gaps in its favor are output power, low-end response.
Pick the Emberton III if you care most about battery. Its strongest claims are battery.
Both ship with comparable water resistance, stereo pairing, so those specs don't separate the two — focus on the differences below.
Bottom line: the Xtreme 4 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why JBL - Xtreme 4 wins
- ▲Output power — 400.00% more. 100 W vs 20 W.
- ▲Low-end response — 7.00 Hz less. 53 vs 60.
Why Marshall - Emberton III wins
- ▲Battery — 33.33% more. 32 h vs 24 h.
Spec comparison
Audio
| Spec | JBL - Xtreme 4 | Marshall - Emberton III |
|---|---|---|
| Output power | 100 Wlead | 20 W |
| Low-end response | 53 Hzlead | 60 Hz |
| Stereo pairing | true | true |
Durability
| Spec | JBL - Xtreme 4 | Marshall - Emberton III |
|---|---|---|
| Water resistanceⓘ | IP67 | IP67 |
| Weight | 2150 g | 700 glead |
Battery
| Spec | JBL - Xtreme 4 | Marshall - Emberton III |
|---|---|---|
| Battery | 24 h | 32 hlead |
| USB out (powerbank) | truelead | false |
Frequently asked
Spec-level deep dives
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