Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | JBL - Boombox 3 | JBL - Xtreme 4 |
|---|---|---|
| Output power | 180 W | 100 W |
| Low-end response | 40 Hz | 53 Hz |
Between the Boombox 3 and Xtreme 4, the Boombox 3 comes out ahead in output power / low-end response, while the Xtreme 4 wins on several specs. Overall, the Boombox 3 scores 87.5 and the Xtreme 4 scores 80.9 on our Mars Score.
Which should you buy?
The Boombox 3 edges ahead on the Mars Score (87.5 vs 80.9), but the 6.6-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Boombox 3 if you care most about output power / low-end response. The biggest gaps in its favor are output power, low-end response. The single most decisive one: Output power — 80.00% more. 180 W vs 100 W.
The Xtreme 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 battery, water resistance, stereo pairing, so those specs do not separate the two — focus on the differences below.
Bottom line: the Boombox 3 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: JBL - Boombox 3 or JBL - Xtreme 4?
JBL - Boombox 3 leads the current Mars Score by 6.6 points.The more useful decision is the trade-off behind that result: compare output power against the way you will actually use the product.
Choose JBL - Boombox 3 if…
JBL - Boombox 3 has the measurable edge on output w, frequency low hz.
Choose JBL - Xtreme 4 if…
JBL - Xtreme 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 JBL - Boombox 3 wins
- ▲Output power — 80.00% more. 180 W vs 100 W.
- ▲Low-end response — 13.00 Hz less. 40 vs 53.
Why JBL - Xtreme 4 wins
- No decisive advantages.
Spec comparison
Audio
| Spec | JBL - Boombox 3 | JBL - Xtreme 4 |
|---|---|---|
| Output power | 180 Wlead | 100 W |
| Low-end response | 40 Hzlead | 53 Hz |
| Stereo pairingⓘ | true | true |
Durability
| Spec | JBL - Boombox 3 | JBL - Xtreme 4 |
|---|---|---|
| Water resistanceⓘ | IP67 | IP67 |
| Weight | 6500 g | 2150 glead |
Battery
| Spec | JBL - Boombox 3 | JBL - Xtreme 4 |
|---|---|---|
| Battery | 24 h | 24 h |
| USB out (powerbank) | true | true |