Short answer: the Zealot S89. It ranks #19 of 112 boombox speakers by sound quality (rated 4.0/5) at $193.58 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 S89 is the better-sounding pick. A great value boombox with deep bass, very high volume, a 40 hour battery and water resistance for outdoor parties. It links with other speakers (PartyAdd up to 100 speakers), which the Demerbox DB2 cannot. It has an adjustable EQ, which the Demerbox DB2 lacks. The tradeoff: At high volume, listener reports describe the bass as loose or muddy and the overall balance as less clear than better boombox speakers.
The Demerbox DB2 is the lighter choice. A nearly indestructible waterproof speaker built from a Pelican case, with a 40 hour battery and dry storage. At 5.4 lbs (2.47 kg) it weighs much less than the Zealot S89 at 16.1 lbs (7.3 kg). The tradeoff: Bass is not as deep as better speakers.
Buy the Zealot S89. It is rated higher for sound quality, and the Demerbox DB2 is discontinued, so it is only available used.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A great value boombox with deep bass, very high volume, a 40 hour battery and water resistance 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 S89 | Demerbox DB2 | |
|---|---|---|
| Price | $193.58 | $400 Discontinued |
| Ranked | #19 of 112 in Boombox Size Portable Bluetooth Speakers | #74 of 112 in Boombox Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 36Hz | - |
| Battery Life | 40 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| EQ | Yes (multiple modes) | No |
| IP Rating | IPX6 | IP67 |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| MicroSD Playback | Yes | - |
| Party Mode | Yes (PartyAdd up to 100 speakers) | No |
| Power Input | USB-C | AC Power brick |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 16.1 lbs (7.3 kg) | 5.4 lbs (2.47 kg) |
| Power Bank | Yes (USB-A + USB-C) | Yes (USB-A + USB-C) |
| USB Playback | Yes | No |
| Built-in Microphone | No | No |
| Amplifier Power | 250W | 22W RMS |
| Dimensions | 21.2” x 10.4” x 9.4” (538 x 265 x 240 mm) | 10.6” x 9.7” x 6.9” (270 x 246 x 175 mm) |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters | 2x 3” (76mm) aluminum cone full-range drivers |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.3 | - |
| Strap | No | - |
| FM Tuner | - | No |
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