These are not really the same size class, and that is the honest framing here. The JBL Xtreme 3 ranks #18 of 120 large speakers by sound quality at $269.95; the Marshall Emberton II ranks #127 of 179 medium speakers by sound quality at $151.99.
The JBL Xtreme 3 is the louder, deeper-bass pick. A loud, waterproof stereo speaker with deep bass, balanced sound and a power bank for charging devices. Its bass reaches about 53Hz before falling 10dB, against 62Hz for the Marshall Emberton II. Alan Ross Reviews measured it at 105dB at full volume, against 88dB for the Marshall Emberton II. It keeps a wired aux input, which the Marshall Emberton II lacks. Watch for: Boosted bass.
The Marshall Emberton II is the longer-running, lighter pick. A tough waterproof speaker with Marshall styling, a very long battery and quick charging. It is rated for 30 hours of battery against 15 for the JBL Xtreme 3. At 1.5 lbs (700 g) it weighs much less than the JBL Xtreme 3 at 4 lbs (1.83 kg). It has an adjustable EQ, which the JBL Xtreme 3 lacks. The catch: Strange unnatural echo-like sound coloration, bass not as deep as competitors.
Buy the JBL Xtreme 3 at $269.95 if you want a large speaker. Buy the Marshall Emberton II at $151.99 if you want a medium speaker instead.
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Specifications Side By Side
| JBL Xtreme 3 | Marshall Emberton II | |
|---|---|---|
| Price | $269.95 | $151.99 |
| Ranked | #18 of 120 in Large Size Portable Bluetooth Speakers | #127 of 179 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | 53Hz | 62Hz |
| Battery Life | 15 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Bluetooth Latency | 133ms | 80ms |
| Maximum SPL | 105dB (measured by Alan Ross Reviews) | 88dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (PartyBoost up to 100 speakers) | Yes (Marshall Stack) |
| Power Bank | Yes (USB-A + USB-C) | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | Yes |
| TWS | Yes | No |
| Weight | 4 lbs (1.83 kg) | 1.5 lbs (700 g) |
| App | No | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | No |
| EQ | No | Yes (3 presets via app) |
| IP Rating | IPX7 | IP67 |
| Bluetooth Version | 4.1 | 5.1 |
| Dimensions | 11.7” x 5.4” x 5.3” (298 x 136 x 134 mm) | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) |
| Drivers | 2x 70mm woofers, 2x 20mm tweeters | 2x 2” full-range drivers + 2x passive radiators |
| Frequency Response | 53.5Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 100W | 20W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | No |
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