Short answer: the Soundcore Motion X600 on firmware 4.2.9, the Stockwell II for natural sound. The X600’s firmware 4.2.9 is a big improvement in sound quality over previous releases, though the stock frequency response is wavy. The Stockwell II may be the most natural sounding Marshall speaker, but it is not stereo.
Buy the Marshall Stockwell II. It is rated higher for sound quality, and the $79.99 you would save on the Soundcore Motion X600 does not close the gap.
Battery life favors the Marshall Stockwell II: rated for 20 hours against 12 hours for the Soundcore Motion X600.
Water resistance is not close: the Soundcore Motion X600 is rated at IPX7 (brief submersion), well ahead of the Marshall Stockwell II at IPX4 (splashing).
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Marshall Stockwell II | Soundcore Motion X600 | |
|---|---|---|
| Price | $229.99 | $150 |
| Ranked | #11 of 93 in Large Size Portable Bluetooth Speakers | #19 of 93 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 44Hz | 52Hz |
| 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 | 83ms |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) | 104dB (measured by Alan Ross Reviews) |
| Party Mode | No | Yes (PartyCast up to 100 speakers) |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| TWS | No | Yes |
| Weight | 3.1 lbs (1.4 kg) | 5.2 lbs (2.35 kg) |
| App | No | No |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| Power Bank | No | Yes (USB-C) |
| Bluetooth Version | 5.0 | 5.3 |
| Dimensions | 7.1” x 6.3” x 2.8” (180 x 161 x 70 mm) | 11.8” x 4.8” x 3.2” (300 x 121 x 81 mm) |
| Drivers | 3” woofer, 2x 2” fullrange tweeters | 2x 60mm woofers, 2x 27mm tweeters, 1x 50mm upward-firing driver |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 50Hz - 40kHz (Manufacturer specified) |
| Amplifier Power | 20W | 50W |
| Digital Aux Input | No | No |
| Strap | Yes (built-in strap) | No |
| Aux Latency | - | 0ms |
Related Speaker Comparisons
More worthwhile head-to-heads for Marshall Stockwell II:
- Marshall Stockwell II vs Vifa Helsinki
- JBL Xtreme 5 vs Marshall Stockwell II
- Marshall Stockwell II vs Tribit Stormbox Lava
- Brane X vs Marshall Stockwell II
- Marshall Stockwell II vs Minirig 4 with subwoofer
Prices on this page were last checked October 2, 2026 at 10:18 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.
As an eBay Partner, we may be compensated if you make a purchase.
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
- Head-to-Head Comparisons
- Marshall Stockwell II vs B&O Beosound A5
- Marshall Stockwell II vs Soundcore Boom 2
- Marshall Stockwell II vs Mifa Wildbox
- Marshall Stockwell II vs Harman Kardon Citation 200
- Marshall Stockwell II vs Soundcore Motion Boom
- Marshall Stockwell II vs Soundcore Select Pro
- Marshall Stockwell II vs B&O Beoplay A2 active
- Marshall Stockwell II vs Bose SoundLink Max
- See all 68 comparisons
Soundcore Motion X600: $150 Amazon B&H Photo Video eBay
Pros: Firmware 4.2.9 is a big improvement in sound quality over previous releases. Try this Oluv EQ for the best sound quality. Measured bass extension of 52Hz (-10dB).
Cons: Stock frequency response is wavy. Use spatial mode for best sound quality. Need a different EQ for each volume step. Dip in the upper bass around 120Hz. Rising frequency response, treble a little hot. Would be ranked around #20 without the Oluv EQ. Even with the Oluv EQ the bass isn’t very deep and the sound is still a little unnatural.
Full Soundcore Motion X600 review and specifications →
| Amplifier Power | 50W |
|---|---|
| App | No |
| Aux Input | Yes |
| Aux Latency | 0ms |
| Bass Extension (-10dB) | 52Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | LDAC, SBC |
| Bluetooth Latency | 83ms |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.8” x 4.8” x 3.2” (300 x 121 x 81 mm) |
| Drivers | 2x 60mm woofers, 2x 27mm tweeters, 1x 50mm upward-firing driver |
| EQ | No |
| Frequency Response | 50Hz - 40kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 104dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (PartyCast up to 100 speakers) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 5.2 lbs (2.35 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Soundcore Motion X600 now tuned by Alan Ross (sort of) Not clickbait! More from alanrossreviews →
- Alan Ross Reviews: breaking news…..Soundcore Motion X600 with LDAC and spatial audio!
- Alan Ross Reviews: Spatial Audio: Soundcore Motion X600 Vs Tribit Stormbox Blast
- Alan Ross Reviews: Soundcore Motion x600 (best speaker ever) or two motion booms?
- Alan Ross Reviews: Craziest firmware update ever - Soundcore Motion X600 3.2.8/4.2.8 🤦♀️
- Oluv Patreon: SoundCore Motion X600 vs VIFA Helsinki More from Oluv’Sone →
- NeverEnoughTech: soundcore Motion X600 vs. Sonos Move vs. Bose Soundlink Revolve II
- Jay’s Straight Up Reviews & More: TREBLAB HD-360 (360° Sound) vs Soundcore Motion X600 (Spatial Sound)😮💨 Cornered in Basement Kitchen More from JaysStraightUpReviews →
- Mateusz Cholewa: BOGASING S8 Pro MAX KILLER? vs Soundcore Motion X600 More from Mateusz Cholewa →
- Head-to-Head Comparisons
- Soundcore Motion X600 vs JBL Xtreme 3
- Soundcore Motion X600 vs Loewe We. Hear Pro
- Soundcore Motion X600 vs Soundcore Rave Neo 2
- Soundcore Motion X600 vs Bose SoundLink Max
- Soundcore Motion X600 vs B&O Beoplay A2 active
- Soundcore Motion X600 vs Soundcore Select Pro
- Soundcore Motion X600 vs Teufel Rockster Cross
- Soundcore Motion X600 vs Soundcore Motion Boom
- See all 62 comparisons