Short answer: the JBL Boombox 4 for the higher ranking, the ZZA K8 for the lower price. The JBL Boombox 4 ranks #17 of 70 boombox speakers at $549.95. The ZZA K8 ranks #47 at $40, $509.95 cheaper.
What the JBL Boombox 4 gets right: Pretty insane output capability for the size. Set against that: Pretty overpriced for the category.
On the ZZA K8 side: Completely insane value for the money. The catch: Very V curve frequency response, can be harsh in the treble range.
Buy the JBL Boombox 4 if the ranking matters more than the price. Buy the ZZA K8 if the price matters more than the ranking.
Specifications Side By Side
| JBL Boombox 4 | ZZA K8 | |
|---|---|---|
| Price | $549.95 | $40 after clipped coupon |
| Ranked | #17 of 70 in Boombox Size Portable Bluetooth Speakers | #47 of 70 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | 41Hz | - |
| Battery Life | 28 hours (Manufacturer specified) | ~30 hours (Manufacturer specified) |
| EQ | No | No |
| IP Rating | IP68 | IPX6 |
| Bluetooth Latency | AAC 144ms, SBC 48ms | - |
| Max Volume | 115dB | - |
| Party Mode | Yes (Auracast) | No |
| Power Input | AC Power cord | USB-C |
| Removable Battery | Yes | - |
| Stereo | Yes | Yes |
| Weight | 13.2 lbs / 5.98 kg | 6.8 lbs / 3.1 kg |
| Bluetooth Codecs | SBC, LC3, AAC | SBC |
| Built in Microphone | No | No |
| Power Bank | Yes | Yes |
| TWS | Yes | Yes |
| USB Audio | Yes | - |
| USB Playback | No | No |
| FM Tuner | No | No |
| Microphone Input | No | Yes |
| MicroSD Playback | No | - |
| Output Power | 210W AC / 200W battery | Specs not available |
| Dimensions | 51cm x 26cm x 21cm | Dimensions not available |
| Drivers | 2x 123mm woofers + 2x 20mm tweeters with passive radiators | 8" woofer + tweeters |
| Aux Output | - | Yes |
| Wireless Microphones | - | Yes 2 Included |
The Two Speakers In Full
JBL Boombox 4: $549.95 Amazon Bhphotovideo
Pros: Pretty insane output capability for the size.
Cons: Pretty overpriced for the category. Better than the Boombox 3 mostly because there are more 7 EQ bands instead of just 3 and it can be better tuned. Try Oluv’s EQ for it. Out of the box sounds worse than the Boombox 3. No Aux input.
| App | Yes |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 41Hz |
| Battery Life | 28 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, LC3, AAC |
| Bluetooth Latency | AAC 144ms, SBC 48ms |
| Built in Microphone | No |
| Dimensions | 51cm x 26cm x 21cm |
| Drivers | 2x 123mm woofers + 2x 20mm tweeters with passive radiators |
| EQ | No |
| FM Tuner | No |
| IP Rating | IP68 |
| Max Volume | 115dB |
| MicroSD Playback | No |
| Microphone Input | No |
| Output Power | 210W AC / 200W battery |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes |
| Power Input | AC Power cord |
| Removable Battery | Yes |
| Stereo | Yes |
| TWS | Yes |
| USB Audio | Yes |
| USB Playback | No |
| Weight | 13.2 lbs / 5.98 kg |
- Reviews, Comparisons and Sound Samples
- JOY‘s 🎧3D🔈Audio-Show: JBL Boombox 4 vs Boombox 3 - old one sounding better? 🤔
- JOY‘s 🎧3D🔈Audio-Show: JBL Boombox 4 vs Earfun UBoom X - sound test
- JOY‘s 🎧3D🔈Audio-Show: JBL Boombox 4 vs Boombox 3 - any improvement?
- JOY‘s 🎧3D🔈Audio-Show: JBL Boombox 4 vs Partybox Encore 2 - outdoor loudness & basstest
- JOY‘s 🎧3D🔈Audio-Show: JBL Boombox 4 - finally a real BOOMbox from JBL 👏
- Alan Ross Reviews: JBL Boombox 4 HUMILIATES Brane X?! Ultimate Bass Battle!
- Alan Ross Reviews: JBL Boombox 4 Compared to Boombox 3 & 3 WiFi – Worth the Upgrade?
- Alan Ross Reviews: JBL Boombox 4 distortion fest bonanza! how bad can it be lol 🤣
- Jagist reviews: Jbl Boombox 4 Vs Zealot Ze21!!!
- Techder Audios: JBL Boombox 4 VS Zealot ZE21 BATTLE OF THE BOOMBOXES!
- Dominik Reviews: Zealot S89 vs JBL Boombox 4 - JBL Alternative? Sound Test
- Jagist reviews: Jbl Boombox 4 Vs Zealot S89!!!
- Jagist reviews: Jbl Boombox 4 Vs Zealot S95!!!
- Head-to-Head Comparisons
- Links
ZZA K8: $40 after clipped coupon Amazon
Pros: Completely insane value for the money. Comes with 2 metal body wireless microphones that are USB-C chargeable. Comes with Chinese labeled infrared remote control. Has voice delete function that works quite well. Adjustable microphone reverb. Pretty good build quality. The default EQ is the most balanced, the other two sound muffled.
Cons: Very V curve frequency response, can be harsh in the treble range. Treble is boosted a good +10dB. Midbass is recessed. Slight distortion issue at all volume levels due to the bass high pass filter being set too low
| App | No |
|---|---|
| Aux Input | Yes |
| Aux Output | Yes |
| Battery Life | ~30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built in Microphone | No |
| Dimensions | Dimensions not available |
| Drivers | 8" woofer + tweeters |
| EQ | No |
| FM Tuner | No |
| IP Rating | IPX6 |
| Microphone Input | Yes |
| Output Power | Specs not available |
| Party Mode | No |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 6.8 lbs / 3.1 kg |
| Wireless Microphones | Yes 2 Included |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.