Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Marshall Stockwell II ranks #11 of 82 large speakers by sound quality at $229.99; the JBL Boombox 4 ranks #20 of 76 boombox speakers by sound quality at $429.95.
What the Marshall Stockwell II does well: Marshall Stockwell II uses 3” woofer, 2x 2” fullrange tweeters. The tradeoff: Bass is limited by its 44Hz specification.
What the JBL Boombox 4 does well: Pretty insane output capability for the size. The tradeoff: Pretty overpriced for the category.
Buy the Marshall Stockwell II at $229.99 if you want a large speaker. Buy the JBL Boombox 4 at $429.95 if you want a boombox speaker instead.
Water resistance is not close: the JBL Boombox 4 is rated at IP68 (extended 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 | JBL Boombox 4 | |
|---|---|---|
| Price | $229.99 | $429.95 |
| Ranked | #11 of 82 in Large Size Portable Bluetooth Speakers | #20 of 76 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | 44Hz | 41Hz |
| Battery Life | 20 hours (Manufacturer specified) | 28 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | SBC, LC3, AAC |
| IP Rating | IPX4 | IP68 |
| Bluetooth Latency | 50ms | AAC 144ms, SBC 48ms |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) | 115dB (measured by Alan Ross Reviews) |
| Party Mode | No | Yes (Auracast) |
| Power Input | USB-C | AC Power cord |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| TWS | No | Yes |
| Weight | 3.1 lbs (1.4 kg) | 13.2 lbs (5.98 kg) |
| App | No | Yes |
| Built-in Microphone | Yes | No |
| EQ | No | Yes (7 band) |
| Power Bank | No | Yes (USB-C, up to 30W) |
| Bluetooth Version | 5.0 | 5.4 |
| Dimensions | 7.1” x 6.3” x 2.8” (180 x 161 x 70 mm) | 20.1” x 10.2” x 8.3” (510 x 260 x 210 mm) |
| Drivers | 3” woofer, 2x 2” fullrange tweeters | 2x 123mm woofers + 2x 20mm tweeters with passive radiators |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 20W | 210W AC / 200W battery |
| Digital Aux Input | No | Yes (USB-C) |
| Strap | Yes (built-in strap) | No |
| Removable Battery | - | Yes |
| USB Playback | - | No |
| FM Tuner | - | No |
| Microphone Input | - | No |
| MicroSD Playback | - | No |
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More worthwhile head-to-heads for Marshall Stockwell II:
- Marshall Stockwell II vs Vifa Helsinki
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- 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 September 26, 2026 at 11:14 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, 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 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? 🙈
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- 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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JBL Boombox 4: $429.95 Amazon B&H Photo Video eBay
Older models: the JBL Boombox 3 (rated 3.8/5), the JBL Boombox 2 (rated 3.5/5) and the JBL Boombox (rated 2.9/5).
Pros: Pretty insane output capability for the size. IP68 protection and Auracast pairing with other current JBL speakers. Measured bass extension of 41Hz (-10dB).
Cons: Pretty overpriced for the category. Better than the Boombox 3 mostly because there are more 7 EQ bands instead of just 3 and it can be better tuned. Try Oluv’s EQ for it. Out of the box sounds worse than the Boombox 3. No Aux input.
Full JBL Boombox 4 review and specifications →
| Amplifier Power | 210W AC / 200W battery |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 41Hz |
| Battery Life | 28 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, LC3, AAC |
| Bluetooth Latency | AAC 144ms, SBC 48ms |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 20.1” x 10.2” x 8.3” (510 x 260 x 210 mm) |
| Drivers | 2x 123mm woofers + 2x 20mm tweeters with passive radiators |
| EQ | Yes (7 band) |
| FM Tuner | No |
| IP Rating | IP68 |
| Maximum SPL | 115dB (measured by Alan Ross Reviews) |
| MicroSD Playback | No |
| Microphone Input | No |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C, up to 30W) |
| Power Input | AC Power cord |
| Removable Battery | Yes |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 13.2 lbs (5.98 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- JOY‘s 🎧3D🔈Audio-Show: JBL Boombox 4 vs Boombox 3 - old one sounding better? 🤔 More from Oluv’Sone →
- JOY‘s 🎧3D🔈Audio-Show: JBL Boombox 4 vs Earfun UBoom X - sound test
- JOY‘s 🎧3D🔈Audio-Show: JBL Boombox 4 vs Boombox 3 - any improvement?
- JOY‘s 🎧3D🔈Audio-Show: JBL Boombox 4 vs Partybox Encore 2 - outdoor loudness & basstest
- JOY‘s 🎧3D🔈Audio-Show: JBL Boombox 4 - finally a real BOOMbox from JBL 👏
- Alan Ross Reviews: JBL Boombox 4 HUMILIATES Brane X?! Ultimate Bass Battle! More from alanrossreviews →
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- M1MTechChannel: Welche JBL Partybox ist die BESTE ? Alle Partyboxen im Vergleich | 2026 More from M1MTechChannel →
- M1MTechChannel: JBL BOOMBOX 4 - Einfach komplett GEISTESKRANK
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