These are not really the same size class, and that is the honest framing here. The Marshall Stockwell III ranks #84 of 120 large speakers by sound quality at $249.99; the Marshall Emberton III ranks #126 of 179 medium speakers by sound quality at $179.99.
The case for the Marshall Stockwell III: A stylish, rugged speaker with a very long battery you can swap yourself, a detailed app EQ, and power bank charging. It supports AAC Bluetooth, which the Marshall Emberton III lacks. It keeps a wired aux input, which the Marshall Emberton III lacks. The catch: Highs are recessed by default and need the treble control maxed to compensate, still lacking detail even then.
The Marshall Emberton III is the lighter, tougher option. A tough waterproof speaker with Marshall styling and a very long battery, plus quick charging. At 1.5 lbs (673 g) it weighs much less than the Marshall Stockwell III at 2.9 lbs (1.3 kg). It is rated IP67 against IP55 for the Marshall Stockwell III. The tradeoff: Strange unnatural echo-like sound coloration, bass not as deep as competitors.
Buy the Marshall Stockwell III at $249.99 if you want a large speaker. Buy the Marshall Emberton III at $179.99 if you want a medium speaker instead.
Want more options? Browse the full Portable Bluetooth rankings.
Prices on this page were last checked November 7, 2026 at 7:34 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Marshall Stockwell III | Marshall Emberton III | |
|---|---|---|
| Price | $249.99 | $179.99 |
| Ranked | #84 of 120 in Large Size Portable Bluetooth Speakers | #126 of 179 in Medium Size Portable Bluetooth Speakers |
| Drivers | 1x 3” woofer, 2x 1.75” wide-band drivers | 2x 2” full-range cone drivers + 2x 2” passive radiators |
| Frequency Response | 54Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 44W | 20W |
| Battery Life | 40+ hours (Manufacturer specified) | 32 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.3 |
| Bluetooth Codecs | SBC, AAC, LE Audio with LC3 | SBC |
| IP Rating | IP55 | IP67 |
| Weight | 2.9 lbs (1.3 kg) | 1.5 lbs (673 g) |
| Dimensions | 7.1” x 6.4” x 2.9” (180 x 162 x 74 mm) | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) |
| App | Yes | Yes |
| EQ | Yes (parametric, via app) | Yes (3 presets via app) |
| Aux Input | Yes | No |
| Digital Aux Input | No | No |
| Power Bank | Yes | No |
| Power Input | USB-C | USB-C |
| Stereo | Partially | Yes |
| Omnidirectional | Yes | Yes |
| TWS | No | No |
| Strap | Yes (detachable strap) | No |
| Bass Extension (-10dB) | - | 62Hz |
| Party Mode | - | Yes (Marshall Stack) |
| Built-in Microphone | - | Yes |
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