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 87.3 and the Xtreme 4 scores 78.6 on our Mars Score.
Which should you buy?
The Boombox 3 is the clear pick on raw spec strength, leading by 8.7 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
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 8.7 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 |