Short answer: the Zealot ZE51. It ranks #16 of 112 boombox speakers by sound quality (rated 4.1/5) at $235.33 and is still sold new; the Demerbox DB2 ranks #74 (rated 2.8/5) and is discontinued, so it is only an option used.
The Zealot ZE51 is the better-sounding pick. A big stereo boombox with clean, wide sound and low distortion at high volume for outdoor parties. It has an adjustable EQ, which the Demerbox DB2 lacks. The catch: The Zealot ZE41 still wins on raw bass depth and price.
The Demerbox DB2 is the longer-running, lighter option. A nearly indestructible waterproof speaker built from a Pelican case, with a 40 hour battery and dry storage. It is rated for 40 hours of battery against 4 for the Zealot ZE51. At 5.4 lbs (2.47 kg) it weighs much less than the Zealot ZE51 at 26 lbs (11.81 kg). It is rated IP67 against IPX5 for the Zealot ZE51. The catch: Bass is not as deep as better speakers.
Buy the Zealot ZE51. It is rated higher for sound quality, and the Demerbox DB2 is discontinued, so it is only available used.
Want more options? Browse the full Portable Bluetooth rankings.
A big stereo boombox with clean, wide sound and low distortion at high volume for outdoor parties.
A nearly indestructible waterproof speaker built from a Pelican case, with a 40 hour battery and dry storage.
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Specifications Side By Side
| Zealot ZE51 | Demerbox DB2 | |
|---|---|---|
| Price | $235.33 after coupon | $400 Discontinued |
| Ranked | #16 of 112 in Boombox Size Portable Bluetooth Speakers | #74 of 112 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Battery Capacity | 48000mAh (12x4000mAh) | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | - |
| Dimensions | 22.1” x 9.4” x 13” (562 x 238 x 331 mm) | 10.6” x 9.7” x 6.9” (270 x 246 x 175 mm) |
| EQ | Yes (Hi-Res, 3D Surround, Extra Bass, Vocal and other sound modes) | No |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX5 | IP67 |
| Microphone Input | Yes (Karaoke mode) | - |
| MicroSD Playback | Yes | - |
| Amplifier Power | 250W | 22W RMS |
| Power Bank | Yes (USB-A + USB-C) | Yes (USB-A + USB-C) |
| Power Input | Type-C | AC Power brick |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | No |
| Weight | 26 lbs (11.81 kg) | 5.4 lbs (2.47 kg) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Drivers | 1x 133mm + 2x 93mm + 2x 45mm | 2x 3” (76mm) aluminum cone full-range drivers |
| Battery Life | 4 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| Strap | Yes (strap) | - |
| Party Mode | - | No |
| Built-in Microphone | - | No |
| FM Tuner | - | No |
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