Short answer: pick the Marshall Stockwell II if you want sound quality that has been measured and ranked; the Bumpboxx Thump is unmeasured so far, so its case rests on features and price.
What the Bumpboxx Thump offers: A compact 120W boombox that uses a sealed chamber with passive radiators for bass, in a 3.2kg cabinet about half the weight of the Flare 8.
What the Marshall Stockwell II brings: Marshall Stockwell II uses 3” woofer, 2x 2” fullrange tweeters.
On paper: The Bumpboxx Thump has more amplifier power, 120W against 20W. The Bumpboxx Thump is rated for 32 hours of battery against 20 hours. The Marshall Stockwell II is lighter, 1.4 kg against 3.2 kg.
Price: the Bumpboxx Thump lists at $179 and the Marshall Stockwell II at $229.99.
Buy the Marshall Stockwell II if you want a speaker whose sound quality has been measured and ranked. It also has less weight.
Buy the Bumpboxx Thump if you want more power, longer battery life and IPX6 water resistance, and you can wait for measurements to confirm how it sounds.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Bumpboxx Thump | Marshall Stockwell II | |
|---|---|---|
| Price | $179.00 | $229.99 |
| Ranked | - | #11 of 85 in Large Size Portable Bluetooth Speakers |
| Amplifier Power | 120W | 20W |
| Aux Input | Yes | Yes |
| Battery Life | 32 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Dimensions | 184H x 362W x 136D mm | 7.1” x 6.3” x 2.8” (180 x 161 x 70 mm) |
| Drivers | Sealed chamber drivers with passive radiators | 3” woofer, 2x 2” fullrange tweeters |
| IP Rating | IPX6 | IPX4 |
| Lights | Yes | - |
| Omnidirectional | No | Yes |
| Strap | Yes (strap) | Yes (built-in strap) |
| TWS | Yes | No |
| USB Playback | Yes | - |
| Weight | 3.2 kg | 3.1 lbs (1.4 kg) |
| Bass Extension (-10dB) | - | 44Hz |
| Bluetooth Codecs | - | SBC |
| Bluetooth Latency | - | 50ms |
| Maximum SPL | - | 96dB (measured by Alan Ross Reviews) |
| Party Mode | - | No |
| Power Input | - | USB-C |
| Stereo | - | No |
| App | - | No |
| Built-in Microphone | - | Yes |
| EQ | - | No |
| Power Bank | - | No |
| Bluetooth Version | - | 5.0 |
| Frequency Response | - | 60Hz - 20kHz (Manufacturer specified) |
| Digital Aux Input | - | No |
Prices on this page were last checked September 29, 2026 at 3:43 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
Bumpboxx Thump: $179.00 Amazon eBay
Pros: A compact 120W boombox that uses a sealed chamber with passive radiators for bass, in a 3.2kg cabinet about half the weight of the Flare 8. Bumpboxx rates the battery at up to 32 hours, and it is IPX6 water resistant, the first Bumpboxx to carry a rating. Bluetooth, USB playback and a 3.5mm aux input, stereo pairing with a second Thump, five RGB lighting modes, a carry handle and an adjustable strap.
Cons: No independent measurements or tested reviews have been published, so its tonal balance, bass extension and real output can’t be compared with ranked speakers. Bumpboxx doesn’t publish its driver sizes, frequency response or Bluetooth codec support, and there are no microphone or guitar inputs like the larger Flare models have. IPX6 covers splashes and rain but not submersion.
Full Bumpboxx Thump review and specifications →
| Amplifier Power | 120W |
|---|---|
| Aux Input | Yes |
| Battery Life | 32 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Dimensions | 184H x 362W x 136D mm |
| Drivers | Sealed chamber drivers with passive radiators |
| IP Rating | IPX6 |
| Lights | Yes |
| Omnidirectional | No |
| Strap | Yes (strap) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 3.2 kg |
- Links
- Reviews, Comparisons and Sound Samples
- These figures are manufacturer-specified rather than independently measured.
- Head-to-Head Comparisons
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 →
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- 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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