Short answer: the JBL Boombox 3 Wifi. It ranks #22 of 75 boombox speakers by sound quality at $389.95; the Demerbox DB2 ranks #51 and costs $400, so there is not much of a tradeoff to weigh.
What the JBL Boombox 3 Wifi offers: Loudest speaker in the category. Slightly better frequency response than the non-wifi version. Watch for: Bass boosted. Dip at 160hz
What the Demerbox DB2 offers: 40+ hour battery life even at higher volumes (real-world: ~14 hrs with phone charging mixed in). Built from a Pelican case - nearly indestructible and waterproof (IP67). Multi-pair up to 6 units. Doubles as power bank and waterproof container. Watch for: Bass is not as deep as better speakers. Very overpriced.
Buy the JBL Boombox 3 Wifi. It ranks higher for sound quality than the Demerbox DB2 and costs less, which settles it without a real tradeoff to make.
Battery life favors the Demerbox DB2: rated for 40 hours against 24 hours for the JBL Boombox 3 Wifi.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| JBL Boombox 3 Wifi | Demerbox DB2 | |
|---|---|---|
| Price | $389.95 | $400 |
| Ranked | #22 of 75 in Boombox Size Portable Bluetooth Speakers | #51 of 75 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 43Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| IP Rating | IP67 | IP67 |
| Maximum SPL | 111dB (measured by Alan Ross Reviews) | - |
| Party Mode | No | No |
| Power Bank | Yes (USB-A, 5V/2A) | Yes (USB-A + USB-C) |
| Power Input | AC Power cable | AC Power brick |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 14.6 lbs (6.6 kg) | 5.4 lbs (2.47 kg) |
| Wi-Fi | Yes | - |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | No | No |
| USB Playback | No | No |
| Built-in Microphone | No | No |
| Amplifier Power | 200W AC / 140W battery | 22W RMS |
| Dimensions | 19.1" x 10.1" x 7.9" (484 x 256 x 200 mm) | 10.6" x 9.7" x 6.9" (270 x 246 x 175 mm) |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters | 2x 3" (76mm) aluminum cone full-range drivers |
| Digital Aux Input | No | No |
| FM Tuner | - | No |
Related Speaker Comparisons
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Prices on this page were last checked September 16, 2026 at 12:41 AM 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
JBL Boombox 3 Wifi: $389.95 Amazon eBay
Pros: Loudest speaker in the category. Slightly better frequency response than the non-wifi version. Measured bass extension of 43Hz (-10dB).
Cons: Bass boosted. Dip at 160hz
Full JBL Boombox 3 Wifi review and specifications →
| Amplifier Power | 200W AC / 140W battery |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 43Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 19.1" x 10.1" x 7.9" (484 x 256 x 200 mm) |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 111dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A, 5V/2A) |
| Power Input | AC Power cable |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 14.6 lbs (6.6 kg) |
| Wi-Fi | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Dominik Reviews: JBL Partybox Encore 2 vs JBL Boombox 3 WiFi - Sound Test - Wide vs Narrow Soundstage! More from Dominik Reviews →
- Mateusz Cholewa: JBL Encore 2 Partybox Deep Bass 🆚 Jbl Boombox 3 WiFi 🎶 More from Mateusz Cholewa →
- Alan Ross Reviews: Not quite! JBL Authentics 300 review and sound test vs Boombox 3, Encore and Stormbox Blast More from alanrossreviews →
- Alan Ross Reviews: WiFi Edition: JBL Boombox 3 ultimate review! vs Boombox 3 Bluetooth edition
- Mateusz Cholewa: Soundcore Rave 3🧐 🆚 Jbl Boombox 3 WiFi
- Head-to-Head Comparisons
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- JBL Boombox 3 Wifi vs Harman Kardon Go + Play 2
- JBL Boombox 3 Wifi vs JBL Boombox 4
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Demerbox DB2: $400 Amazon eBay
Pros: 40+ hour battery life even at higher volumes (real-world: ~14 hrs with phone charging mixed in). Built from a Pelican case - nearly indestructible and waterproof (IP67). Multi-pair up to 6 units. Doubles as power bank and waterproof container.
Cons: Bass is not as deep as better speakers. Very overpriced.
Full Demerbox DB2 review and specifications →
| Amplifier Power | 22W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 10.6" x 9.7" x 6.9" (270 x 246 x 175 mm) |
| Drivers | 2x 3" (76mm) aluminum cone full-range drivers |
| EQ | No |
| FM Tuner | No |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A + USB-C) |
| Power Input | AC Power brick |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 5.4 lbs (2.47 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Demerbox DB2 vs Diamondboxx M3
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