Short answer: the W-King D20. It ranks #41 of 112 boombox speakers by sound quality (rated 3.6/5) at $193 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 W-King D20 is the better-sounding option. A loud stereo party speaker with two wireless microphones, a 24 hour battery and water resistance. It has an adjustable EQ, which the Demerbox DB2 lacks. The tradeoff: Rising frequency response but upper treble rolled off, 700Hz and 1.2kHz peaks.
The Demerbox DB2 is the longer-running, lighter choice. 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 24 for the W-King D20. At 5.4 lbs (2.47 kg) it weighs much less than the W-King D20 at 14.3 lbs (6.5 kg). The catch: Bass is not as deep as better speakers.
Buy the W-King D20. 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 loud stereo party speaker with two wireless microphones, a 24 hour battery and water resistance.
A nearly indestructible waterproof speaker built from a Pelican case, with a 40 hour battery and dry storage.
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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| W-King D20 | Demerbox DB2 | |
|---|---|---|
| Price | $193 | $400 Discontinued |
| Ranked | #41 of 112 in Boombox Size Portable Bluetooth Speakers | #74 of 112 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (W-King app) | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~42Hz | - |
| EQ | Yes (App + button modes) | No |
| IP Rating | IPX6 | IP67 |
| Maximum SPL | 112dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | - |
| Wireless Microphones | Yes | - |
| Power Bank | Yes | Yes (USB-A + USB-C) |
| Power Input | USB-C | AC Power brick |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Party Mode | No | No |
| Built-in Microphone | No | No |
| Amplifier Power | 200W | 22W RMS |
| Dimensions | 19.9” x 8.5” x 10.6” (506 x 217 x 270 mm) | 10.6” x 9.7” x 6.9” (270 x 246 x 175 mm) |
| Drivers | 4.5” + 3.5” drivers + 1.2” tweeters | 2x 3” (76mm) aluminum cone full-range drivers |
| Weight | 14.3 lbs (6500 g) | 5.4 lbs (2.47 kg) |
| Digital Aux Input | No | No |
| Battery Life | 24 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| Bluetooth Version | 5.3 | - |
| FM Tuner | - | No |
Related Speaker Comparisons
How W-King D20 compares with other leading options: