Short answer: the KEF Muo gen2 on sound, the Marshall Emberton II on battery life. KEF seemed to have fixed the rolled off treble and overall balance, though the Muo lacks deeper bass. The Emberton II runs 30 hour battery life, among the best in its class, but it has a strange, unnatural echo-like sound coloration and its bass is not as deep as competitors.
Buy the KEF Muo gen2. It is rated higher for sound quality, and the $98 you would save on the Marshall Emberton II does not close the gap.
Want more options? Browse the full Portable Bluetooth rankings.
A stylish waterproof stereo speaker with aptX Adaptive, USB-C audio input, Auracast and long battery life.
A tough waterproof speaker with Marshall styling, a very long battery and quick charging.
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Specifications Side By Side
| KEF Muo gen2 | Marshall Emberton II | |
|---|---|---|
| Price | $249.99 | $151.99 |
| Ranked | #96 of 179 in Medium Size Portable Bluetooth Speakers | #127 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Battery Life | 24 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, aptX Adaptive up to 48 kHz 24 bit | SBC |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Auracast) | Yes (Marshall Stack) |
| Stereo | Yes | Yes |
| Omnidirectional | No | Yes |
| TWS | Yes | No |
| Digital Aux Input | Yes (USB-C) | No |
| Weight | 1.6 lbs (740 g) | 1.5 lbs (700 g) |
| Bluetooth Version | 5.4 | 5.1 |
| Drivers | 1x 58x117mm racetrack woofer, 1x 20mm tweeter | 2x 2” full-range drivers + 2x passive radiators |
| Dimensions | 8.5” x 3.2” x 2.3” (216 x 82 x 59 mm) | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) |
| Frequency Response | 43Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 40W | 20W |
| Maximum SPL | 90dB (Manufacturer specified) | 88dB (measured by Alan Ross Reviews) |
| Aux Input | No | No |
| EQ | Yes | Yes (3 presets via app) |
| Power Input | USB-C | USB-C |
| Bass Extension (-10dB) | - | 62Hz |
| Bluetooth Latency | - | 80ms |
| Built-in Microphone | - | No |
| Power Bank | - | No |
| Strap | - | No |
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