Short answer: the JBL Boombox 3. It ranks #27 of 112 boombox speakers by sound quality, rated 3.8/5, at $349.95. The Yeahbox Sonic Boom Max 3 ranks #59, rated 3.2/5, at $228.99, $120.96 cheaper, not enough of a saving to outweigh the sound-quality gap.
The JBL Boombox 3 is the better-sounding option. A loud, fully waterproof boombox with a dedicated subwoofer, a 24 hour battery and power bank charging. The tradeoff: Dips in mid bass range which makes the bass sound undefined, bass boosted, peaky at 700Hz, not quite as good mids and treble as the Blast.
What the Yeahbox Sonic Boom Max 3 does well: A large party speaker with powerful bass, a big fast charging battery and app EQ for outdoor parties. It has an adjustable EQ, which the JBL Boombox 3 lacks. The catch: There is limited independent testing and the water/dust rating is reported inconsistently across listings.
Buy the JBL Boombox 3. It is rated higher for sound quality, and saving $120.96 with the Yeahbox Sonic Boom Max 3 does not make up for the sound-quality gap.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A loud, fully waterproof boombox with a dedicated subwoofer, a 24 hour battery and power bank charging.
A large party speaker with powerful bass, a big fast charging battery and app EQ for outdoor parties.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| JBL Boombox 3 | Yeahbox Sonic Boom Max 3 | |
|---|---|---|
| Price | $349.95 | $228.99 |
| Ranked | #27 of 112 in Boombox Size Portable Bluetooth Speakers | #59 of 112 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Aux Latency | 25ms | - |
| Bass Extension (-10dB) | 43Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 111Wh (14.8V/7,500mAh) (Manufacturer specified) |
| IP Rating | IP67 | IPX6 |
| Bluetooth Latency | 100ms | - |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (PartyBoost up to 100 speakers) | - |
| Power Input | AC Power cable | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 14.8 lbs (6.7 kg) | 16.8 lbs (7.64 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| App | No | Yes |
| EQ | No | Yes |
| Power Bank | Yes (USB-A) | - |
| USB Playback | No | Yes |
| Built-in Microphone | No | - |
| FM Tuner | No | - |
| Microphone Input | No | - |
| MicroSD Playback | No | Yes |
| Amplifier Power | 180W AC / 136W battery | 200W RMS / 300W Peak |
| Dimensions | 19” x 10.1” x 7.9” (482 x 257 x 200 mm) | 20.7” x 8.3” x 10.6” (525 x 210 x 268 mm) |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters | 189x114mm woofer, 2x 89mm midrange, 2x 38mm tweeters |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.3 | 5.3 |
| Strap | No | No |
| Lights | - | Yes |
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