Short answer: the Doss Soundbox XL. It ranks #56 of 82 large speakers by sound quality, rated 3.1/5, at $75.99; the Marshall Stockwell III ranks #59, rated 3.0/5, and costs $249.99, so there is little reason to consider the other one.
The case for the Doss Soundbox XL: 32W output power, 100dB max volume, 10-hour battery life, IPX4 splashproof, MicroSD card slot, dual woofer setup with subwoofer, built-in microphone, TWS pairing support. The tradeoff: A little hollow sounding.
Why pick the Marshall Stockwell III: 40+ hour battery life with a user-replaceable battery, strap, sleeve and grilles. The catch: Highs are recessed by default and need the treble control maxed to compensate, still lacking detail even then.
Buy the Doss Soundbox XL. It is rated higher for sound quality than the Marshall Stockwell III and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Doss Soundbox XL | Marshall Stockwell III | |
|---|---|---|
| Price | $75.99 | $249.99 |
| Ranked | #56 of 82 in Large Size Portable Bluetooth Speakers | #59 of 82 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 55Hz | - |
| Battery Life | 10 hours (Manufacturer specified) | 40+ hours (Manufacturer specified) |
| IP Rating | IPX4 | IP55 |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | - |
| Power Input | AC Power brick | USB-C |
| Weight | 1.2 lbs (557 g) | 2.9 lbs (1.3 kg) |
| App | No | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LE Audio with LC3 |
| Built-in Microphone | Yes | - |
| EQ | No | Yes (parametric, via app) |
| Party Mode | No | - |
| Power Bank | No | Yes |
| Stereo | Yes | Partially |
| Omnidirectional | No | Yes |
| TWS | Yes | No |
| Bluetooth Version | 4.0 | 5.3 |
| Drivers | 1x 76mm subwoofer, 2x 50mm fullrange | 1x 3” woofer, 2x 1.75” wide-band drivers |
| Dimensions | 11.8” x 2.6” x 5.2” (300 x 66 x 132 mm) | 7.1” x 6.4” x 2.9” (180 x 162 x 74 mm) |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) | 54Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 32W | 44W |
| Digital Aux Input | No | No |
| Strap | - | Yes (detachable strap) |
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Prices on this page were last checked September 26, 2026 at 11:14 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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The Two Speakers In Full
Doss Soundbox XL: $75.99 Amazon eBay
Pros: 32W output power, 100dB max volume, 10-hour battery life, IPX4 splashproof, MicroSD card slot, dual woofer setup with subwoofer, built-in microphone, TWS pairing support. Measured bass extension of 55Hz (-10dB).
Cons: A little hollow sounding.
Full Doss Soundbox XL review and specifications →
| Amplifier Power | 32W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 55Hz |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.8” x 2.6” x 5.2” (300 x 66 x 132 mm) |
| Drivers | 1x 76mm subwoofer, 2x 50mm fullrange |
| EQ | No |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX4 |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | AC Power brick |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.2 lbs (557 g) |
- Links
- Reviews, Comparisons and Sound Samples
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Marshall Stockwell III: $249.99 Marshall eBay
Older model: the Marshall Stockwell II (rated 4.5/5).
Pros: 40+ hour battery life with a user-replaceable battery, strap, sleeve and grilles. Doubles as a USB-C power bank. IP55 dust/water resistance. App includes parametric EQ, a Soundstage widening control, and wall/corner placement compensation. Endless-rotation control knobs.
Cons: Highs are recessed by default and need the treble control maxed to compensate, still lacking detail even then. Bass tends to sound resonant and boomy, with reported frequency cancellation and phase issues on complex material that EQ doesn’t fully resolve. Oluv’s A/B testing against the outgoing Stockwell II finds the default tuning muffled and muddy enough to prefer the seven-year-old original out of the box, and output loses dynamics and bass while turning harsh well below maximum volume. No aptX support.
Full Marshall Stockwell III review and specifications →
| Amplifier Power | 44W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 40+ hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LE Audio with LC3 |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 7.1” x 6.4” x 2.9” (180 x 162 x 74 mm) |
| Drivers | 1x 3” woofer, 2x 1.75” wide-band drivers |
| EQ | Yes (parametric, via app) |
| Frequency Response | 54Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP55 |
| Omnidirectional | Yes |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Partially |
| Strap | Yes (detachable strap) |
| TWS | No |
| Weight | 2.9 lbs (1.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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