Short answer: the Soundcore Boom 2 is the more capable portable speaker by a wide margin, while the Marshall Stockwell II is the smaller speaker with an aux input. Boom 2 claims 105dB versus 96dB, 24 hours versus 20, IPX7 versus IPX4, and 80W versus 20W, plus a power bank, app EQ, TWS, and PartyCast.
Marshall is lighter at 3.1 lbs (1.4 kg) and its upward-firing format can suit a bedside or small patio. Boom 2 produces deeper bass for the size but needs tuning help: stock response is bass-heavy with rising treble, and its single midrange driver can make bass notes disappear at low volume. Use one of the recommended EQ profiles and disable BassUp for better balance.
Buy the Marshall Stockwell II for a smaller aux-equipped speaker with a simple physical-control experience.
Buy the Soundcore Boom 2 for substantially more volume, weather protection, battery life, and adjustable features.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Marshall Stockwell II | Soundcore Boom 2 | |
|---|---|---|
| Price | $229.99 | $99.99 |
| Ranked | #11 of 120 in Large Size Portable Bluetooth Speakers | #10 of 120 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | 44Hz | 47Hz |
| Battery Life | 20 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| IP Rating | IPX4 | IPX7 |
| Bluetooth Latency | 50ms | 125ms |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) | 105dB (measured by Alan Ross Reviews) |
| Party Mode | No | Yes (PartyCast 2.0 up to 100 speakers) |
| Power Input | USB-C | USB-C |
| Stereo | No | Partially (1 woofer) |
| Omnidirectional | Yes | No |
| TWS | No | Yes |
| Weight | 3.1 lbs (1.4 kg) | 3.7 lbs (1.68 kg) |
| App | No | Yes |
| Built-in Microphone | Yes | No |
| EQ | No | Yes |
| Power Bank | No | Yes (USB-A) |
| Bluetooth Version | 5.0 | 5.3 |
| Dimensions | 7.1” x 6.3” x 2.8” (180 x 161 x 70 mm) | 11.7” x 7.3” x 4” (297 x 185 x 102 mm) |
| Drivers | 3” woofer, 2x 2” fullrange tweeters | 120mm x 90mm woofer, 2x 20mm tweeters |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 45Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 20W | 80W |
| Digital Aux Input | No | No |
| Strap | Yes (built-in strap) | No |
| MicroSD Playback | - | No |
| Lights | - | Yes |
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