Short answer: the Soundcore Motion X500 for stereo and features, the Stockwell II for natural tonality. The X500 runs 40W stereo through two tweeters and a woofer with an IPX7 weatherproof rating, but it is a little bright on top, peaks at 250Hz and dips at 1kHz, though a custom EQ can flatten it. The Stockwell II may be the most natural sounding Marshall speaker with excellent off-axis performance, but it is not stereo and is not very loud.
Buy the Marshall Stockwell II if sound quality is the priority over the price, or the Soundcore Motion X500 if the price is the priority over sound quality.
There is a real battery-life gap here: the Marshall Stockwell II is rated for 20 hours, the Soundcore Motion X500 only 12 hours.
If water resistance matters to you, the Soundcore Motion X500 at IPX7 (brief submersion) holds up far better than the Marshall Stockwell II at IPX4 (splashing).
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Marshall Stockwell II | Soundcore Motion X500 | |
|---|---|---|
| Price | $229.99 | $99.99 |
| Ranked | #11 of 102 in Large Size Portable Bluetooth Speakers | #27 of 102 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 44Hz | 48Hz |
| Battery Life | 20 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | LDAC, SBC |
| IP Rating | IPX4 | IPX7 |
| Bluetooth Latency | 50ms | - |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) | 104dB (measured by Alan Ross Reviews) |
| Party Mode | No | No |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| TWS | No | Yes |
| Weight | 3.1 lbs (1.4 kg) | 4.6 lbs (2.1 kg) |
| App | No | Yes |
| Built-in Microphone | Yes | Yes |
| EQ | No | Yes |
| Power Bank | No | No |
| Bluetooth Version | 5.0 | 5.3 |
| Dimensions | 7.1” x 6.3” x 2.8” (180 x 161 x 70 mm) | 8.7” x 8” x 3.2” (220 x 202 x 81 mm) |
| Drivers | 3” woofer, 2x 2” fullrange tweeters | 2x 58mm (2.3”) forward-firing full-range drivers + 1x 43mm (1.7”) upward-firing driver |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 50Hz - 40kHz (Manufacturer specified) |
| Amplifier Power | 20W | 40W |
| Digital Aux Input | No | No |
| Strap | Yes (built-in strap) | No |
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Prices on this page were last checked October 3, 2026 at 10:26 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
Marshall Stockwell II: $229.99 Amazon eBay
Newer model: the Marshall Stockwell III, ranked lower, rated 3/5.
Pros: Marshall Stockwell II uses 3” woofer, 2x 2” fullrange tweeters. Its 1.4 kg, claimed 20 hours (Manufacturer specified) battery life, IPX4 protection, aux input, up to 96dB and mono playback make it a practical option for its intended room or portable use. Possibly the most natural sounding Marshall speaker, with excellent off-axis sound. Measured bass extension of 44Hz (-10dB).
Cons: Bass is limited by its 44Hz specification. There is no companion app. No EQ adjustment. Not very loud, and the added DSP reverb may annoy purists.
Full Marshall Stockwell II review and specifications →
| Amplifier Power | 20W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 44Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 50ms |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.1” x 6.3” x 2.8” (180 x 161 x 70 mm) |
| Drivers | 3” woofer, 2x 2” fullrange tweeters |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX4 |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in strap) |
| TWS | No |
| Weight | 3.1 lbs (1.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Marshall Stockwell 2 vs Soundcore Motion Boom and Motion Plus! expensive is better? More from alanrossreviews →
- Alan Ross Reviews: Marshall Stockwell 2 vs Denon 250bt - little and large? 🙈
- Alan Ross Reviews: Marshall Stockwell 2 Review and huge sound test! - vs JBL Charge 5! 💯
- Alan Ross Reviews: Marshall Emberton vs Marshall Stockwell 2 - little guy goes louder?? 🤓
- Oluv Patreon: Marshall Stockwell III vs Stockwell II More from Oluv’Sone →
- Joy & Oluv’Sone: Marshall Stockwell III vs II - sound test
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Soundcore Motion X500: $99.99 Amazon eBay
Smaller models: the Soundcore Motion 300 (rated 4.5/5) and the Soundcore Motion 100 (rated 3.7/5).
Larger model: the Soundcore Motion X600 (ranked higher, rated 4.3/5).
Pros: 40W stereo with 3-driver layout (two tweeters + woofer). IPX7 weatherproof rating. Compact and very portable. Fine build quality at this price. Spatial Dynamic mode provides immersive sound. Gets close to 12 hour battery claim. Measured bass extension of 48Hz (-10dB).
Cons: A little bright on top, a custom EQ can flatten things out a bit. Peaks at 250Hz and dip at 1kHz
Full Soundcore Motion X500 review and specifications →
| Amplifier Power | 40W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 48Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | LDAC, SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.7” x 8” x 3.2” (220 x 202 x 81 mm) |
| Drivers | 2x 58mm (2.3”) forward-firing full-range drivers + 1x 43mm (1.7”) upward-firing driver |
| EQ | Yes |
| Frequency Response | 50Hz - 40kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 104dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 4.6 lbs (2.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Soundcore Motion X500 vs Sonos Move 2
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