Short answer: the Stockwell II for out-of-the-box sound, the Stockwell III for features. An independent A/B comparison preferred the Stockwell II’s tuning, with the Stockwell III running muffled and muddy until EQ work closes part of the gap, and the older speaker held up better at higher volumes. The III adds a parametric EQ app, soundstage widening, wall/corner compensation, a 40+ hour power-bank battery and IP55 protection for $249.99.
This pits Marshall’s new Stockwell III against the seven-year-old Stockwell II it replaces. The Stockwell III offers a parametric EQ app, a soundstage-widening control, wall/corner placement compensation, a 40+ hour battery that doubles as a USB-C power bank, and IP55 protection for $249.99. The Stockwell II offers a simpler mono speaker with no app or EQ, a 20-hour battery and IPX4 protection, for $229.99.
Choose the Stockwell II for a more listenable default sound: In an independent A/B comparison, the reviewer preferred the Stockwell II’s out-of-the-box tuning, since the Stockwell III ran muffled and muddy by default and only partly closed the gap after real EQ work. The Stockwell II also held up better at higher volumes, where the Stockwell III loses dynamics and bass and turns harsh.
Choose the Stockwell III for the feature upgrades: Its parametric EQ, soundstage widening, wall/corner compensation, a battery that runs twice as long and works as a power bank, and IP55 dust protection are real upgrades on paper, if you’re willing to put in the EQ work to get there.
Buy the Marshall Stockwell II. It is rated higher for sound quality than the Marshall Stockwell III and costs less, so only choose the other one for a particular feature it does better.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A stylish, rugged speaker with a very long battery you can swap yourself, a detailed app EQ, and power bank charging.
A light, strap equipped speaker with some of the most natural sound around, even off to the side, and a long battery.
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Specifications Side By Side
| Marshall Stockwell III | Marshall Stockwell II | |
|---|---|---|
| Price | $249.99 | $229.99 |
| Ranked | #79 of 115 in Large Size Portable Bluetooth Speakers | #11 of 115 in Large Size Portable Bluetooth Speakers |
| Drivers | 1x 3” woofer, 2x 1.75” wide-band drivers | 3” woofer, 2x 2” fullrange tweeters |
| Frequency Response | 54Hz - 20kHz (Manufacturer specified) | 60Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 44W | 20W |
| Battery Life | 40+ hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.0 |
| Bluetooth Codecs | SBC, AAC, LE Audio with LC3 | SBC |
| IP Rating | IP55 | IPX4 |
| Weight | 2.9 lbs (1.3 kg) | 3.1 lbs (1.4 kg) |
| Dimensions | 7.1” x 6.4” x 2.9” (180 x 162 x 74 mm) | 7.1” x 6.3” x 2.8” (180 x 161 x 70 mm) |
| App | Yes | No |
| EQ | Yes (parametric, via app) | No |
| Aux Input | Yes | Yes |
| Digital Aux Input | No | No |
| Power Bank | Yes | No |
| Power Input | USB-C | USB-C |
| Stereo | Partially | No |
| Omnidirectional | Yes | Yes |
| TWS | No | No |
| Strap | Yes (detachable strap) | Yes (built-in strap) |
| Bass Extension (-10dB) | - | 44Hz |
| Bluetooth Latency | - | 50ms |
| Maximum SPL | - | 96dB (measured by Alan Ross Reviews) |
| Party Mode | - | No |
| Built-in Microphone | - | Yes |
Watch Them Compared
Videos and reviews that test both speakers side by side.
- Joy & Oluv’Sone: Marshall Stockwell III vs II - sound test
- Oluv Patreon: Marshall Stockwell III vs Stockwell II
- Alan Ross Reviews: Marshall Stockwell 3 Unboxing (live stream)
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