These sit in different size classes, so this is not a straight ranking comparison. The JBL Xtreme 4 ranks #43 of 120 large speakers by sound quality at $309.95; the Marshall Emberton II ranks #127 of 179 medium speakers by sound quality at $151.99.
The JBL Xtreme 4 is the louder pick. A rugged, waterproof speaker with clear, punchy sound, a swappable battery, a power bank and excellent real world battery life. Alan Ross Reviews measured it at 106dB at full volume, against 88dB for the Marshall Emberton II. The catch: It cannot produce the deep rumble of a larger speaker, and bass compression increases near maximum volume.
The Marshall Emberton II is the lighter option. A tough waterproof speaker with Marshall styling, a very long battery and quick charging. At 1.5 lbs (700 g) it weighs much less than the JBL Xtreme 4 at 4.6 lbs (2.1 kg). The tradeoff: Strange unnatural echo-like sound coloration, bass not as deep as competitors.
Buy the JBL Xtreme 4 ($309.95) for a large speaker; the Marshall Emberton II ($151.99) suits a medium speaker instead.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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Specifications Side By Side
| JBL Xtreme 4 | Marshall Emberton II | |
|---|---|---|
| Price | $309.95 | $151.99 |
| Ranked | #43 of 120 in Large Size Portable Bluetooth Speakers | #127 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Battery Life | 24 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| EQ | Yes (5 band) | Yes (3 presets via app) |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | 220ms | 80ms |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | 88dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (Auracast) | Yes (Marshall Stack) |
| Power Bank | Yes (USB-C) | No |
| Power Input | USB-C | USB-C |
| Removable Battery | Yes | - |
| TWS | Yes | No |
| Weight | 4.6 lbs (2.1 kg) | 1.5 lbs (700 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | No |
| Stereo | Yes | Yes |
| Omnidirectional | No | Yes |
| Bluetooth Version | 5.3 | 5.1 |
| Dimensions | 11.7” x 5.9” x 5.6” (297 x 149 x 141 mm) | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) |
| Drivers | 2x 70mm woofers, 2x 19mm tweeters + 2x passive radiators | 2x 2” full-range drivers + 2x passive radiators |
| Frequency Response | 44Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 100W | 20W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | No |
| Bass Extension (-10dB) | - | 62Hz |
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