Short answer: the Stockwell II for natural sound, the Select Pro for value. The Select Pro sounds almost exactly like the Motion Boom, but it has boosted bass and rolled off treble. The Stockwell II may be the most natural sounding Marshall speaker, though it is not stereo.
Buy the Marshall Stockwell II. It is rated higher for sound quality, and the Soundcore Select Pro is discontinued, so it is only available used.
There is a real gap in water resistance: the Soundcore Select Pro at IPX7 (brief submersion) against the Marshall Stockwell II, which has IPX4 (splashing).
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Marshall Stockwell II | Soundcore Select Pro | |
|---|---|---|
| Price | $229.99 | $80 Discontinued |
| Ranked | #11 of 97 in Large Size Portable Bluetooth Speakers | #15 of 97 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | 44Hz | - |
| Battery Life | 20 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| IP Rating | IPX4 | IPX7 |
| Bluetooth Latency | 50ms | - |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) | 106dB (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 | No |
| Weight | 3.1 lbs (1.4 kg) | 3.3 lbs (1.5 kg) |
| App | No | Yes (Users say it works) |
| Built-in Microphone | Yes | Yes |
| EQ | No | Yes |
| Power Bank | No | Yes |
| Bluetooth Version | 5.0 | 5.0 |
| Dimensions | 7.1” x 6.3” x 2.8” (180 x 161 x 70 mm) | 13.6” x 5.8” x 7.9” (346 x 148 x 200 mm) |
| Drivers | 3” woofer, 2x 2” fullrange tweeters | 2x 2.75” fullrange + 2x 2.5” passive radiators |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 20W | 30W |
| Digital Aux Input | No | No |
| Strap | Yes (built-in strap) | - |
Related Speaker Comparisons
How Marshall Stockwell II compares with other leading options:
- 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.
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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
- 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 B&O Beoplay A2 active
- Marshall Stockwell II vs Bose SoundLink Max
- Marshall Stockwell II vs Minirig 4 with subwoofer
- See all 68 comparisons
Soundcore Select Pro: $80 Discontinued eBay
Pros: A tough 1.5kg speaker with IPX7 protection, app EQ, a claimed 16-hour battery life, USB-C charging, power-bank output and PartyCast for linking up to 100 compatible speakers. It reaches a useful 106dB maximum level and offers a lively, bass-forward sound for casual outdoor use.
Cons: Independent lab listening finds only fair music fidelity: bass is somewhat boomy and lacks deep extension, mids can sound nasal and congested, and treble becomes smeared or sizzly. It strains at high volume, lacks an aux input and is discontinued, so it is best chosen for features and durability rather than detail or neutral sound.
Full Soundcore Select Pro review and specifications →
| Amplifier Power | 30W |
|---|---|
| App | Yes (Users say it works) |
| Aux Input | No |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 13.6” x 5.8” x 7.9” (346 x 148 x 200 mm) |
| Drivers | 2x 2.75” fullrange + 2x 2.5” passive radiators |
| EQ | Yes |
| IP Rating | IPX7 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (PartyCast up to 100 speakers) |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | No |
| Weight | 3.3 lbs (1.5 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: This is shocking! They broke the world pound for pound champ! 😢 More from alanrossreviews →
- Snow Queen’s Tech: ANKER SOUNDCORE SELECT PRO VS MOTION BOOM - DO THEY SOUND THE SAME? SOUND TEST ( PLEASE WEAR 🎧)
- Chowa: Soundcore Select Pro (Review)
- Jay’s Straight Up Reviews & More: On a Ledge 🪟 Zealot S67 🆚 Soundcore Select Pro - Bluetooth Speaker Comparison More from JaysStraightUpReviews →
- Head-to-Head Comparisons
- Soundcore Select Pro vs B&O Beoplay A2 active
- Soundcore Select Pro vs Soundcore Motion Boom
- Soundcore Select Pro vs Harman Kardon Citation 200
- Soundcore Select Pro vs Bose SoundLink Max
- Soundcore Select Pro vs JBL Xtreme 3
- Soundcore Select Pro vs Soundcore Motion X600
- Soundcore Select Pro vs Soundcore Boom 2
- Soundcore Select Pro vs Soundcore Rave Neo 2
- See all 38 comparisons