Short answer: the Zealot S89. It ranks #16 of 73 boombox speakers by sound quality at $246.99; the JBL Boombox ranks #46 and costs $399, so there is not much of a tradeoff to weigh.
What the Zealot S89 offers: A great value for the bass performance, play time and max volume in the boombox class. Likely the same internals as the Zealot ZE21 Watch for: On the heavy side. A little rolled off up top and not that balanced through the rest of the range. Clarity isn’t as good as better speakers. Bass EQ is bloated and muddy sounding
What the JBL Boombox offers: Connect+ up to 100 speakers. Watch for: Treble isn’t very smooth
Buy the Zealot S89. It ranks higher for sound quality than the JBL Boombox and costs less, so the other one has nothing left to offer.
If battery life is a priority, the Zealot S89 is rated for 40 hours versus 24 hours for the JBL Boombox.
Specifications Side By Side
| Zealot S89 | JBL Boombox | |
|---|---|---|
| Price | $246.99 | $399 Discontinued |
| Ranked | #16 of 73 in Boombox Size Portable Bluetooth Speakers | #46 of 73 in Boombox Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 36Hz | - |
| Battery Life | 40 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| EQ | Yes (multiple modes) | No |
| IP Rating | IPX6 | IPX5 |
| Bluetooth Codecs | SBC | SBC |
| MicroSD Playback | Yes | No |
| Party Mode | Yes (PartyAdd up to 100 speakers) | Yes (Connect+ up to 100 speakers) |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 16.1 lbs / 7.3 kg | 11.5 lbs / 5.2 kg |
| Power Bank | Yes (USB-A + USB-C) | Yes (USB-A) |
| USB Playback | Yes | No |
| Built in Microphone | No | No |
| Output Power | 250W | 60W AC / 40W battery |
| Dimensions | 21.2" x 10.4" x 9.4" (538 x 265 x 240 mm) | 10" x 18.1" x 7.7" (254.5 x 458.5 x 195.5 mm) |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters | 2x 65mm woofers + 2x 20mm tweeters with passive radiators |
| Digital Aux Input | No | No |
| FM Tuner | - | No |
| Microphone Input | - | No |
| Discontinued | - | Yes |
Related Speaker Comparisons
A few more comparisons worth a look in the same class:
- Zealot ZE21 vs Sony ULT Field 7
- Turtlebox Gen 2 vs Zealot ZE21
- Harman Kardon Onyx Studio 7 vs Sony SRS-XG500
- Zealot ZE21 vs JBL Boombox
- Zealot S89 vs Sony ULT Field 7
Prices on this page were last checked August 27, 2026 at 10:09 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.
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The Two Speakers In Full
Zealot S89: $246.99 Amazon Aliexpress eBay
Pros: A great value for the bass performance, play time and max volume in the boombox class. Likely the same internals as the Zealot ZE21
Cons: On the heavy side. A little rolled off up top and not that balanced through the rest of the range. Clarity isn’t as good as better speakers. Bass EQ is bloated and muddy sounding
Full Zealot S89 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 36Hz |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 21.2" x 10.4" x 9.4" (538 x 265 x 240 mm) |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters |
| EQ | Yes (multiple modes) |
| IP Rating | IPX6 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Output Power | 250W |
| Party Mode | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes (USB-A + USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 16.1 lbs / 7.3 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Zealot S89 vs Yeahbox Boom Max3 - indoor listening test More from Oluv’Sone →
- Oluv Patreon: Zealot S89 vs Yeahbox Sonic Boom Max3 - outdoor test
- Dominik Reviews: Zealot S89 vs JBL Boombox 4 - JBL Alternative? Sound Test More from Dominik Reviews →
- Jagist reviews: Jbl Boombox 4 Vs Zealot S89!!! More from Jagistreviews →
- Techder Audios: ZEALOT S89 VS ZEALOT ZE01 EXTREME POWERFULL VS COMPACTER BASS PERFORMANCE! More from techderaudios →
- Reddit Search for Zealot S89 Review
- Head-to-Head Comparisons
- Zealot S89 vs JBL Boombox 4
- Zealot S89 vs Zealot ZE21
- Zealot S89 vs Zealot ZE41
- Zealot S89 vs Harman Kardon Go + Play 2
- Zealot S89 vs Harman Kardon Onyx Studio 9
- Zealot S89 vs Harman Kardon Onyx Studio 5
- Zealot S89 vs Harman Kardon Onyx Studio 7
- Zealot S89 vs JBL Boombox 3 Wifi
- See all 44 comparisons
JBL Boombox: $399 Discontinued JBL Boombox eBay
Pros: Connect+ up to 100 speakers.
Cons: Treble isn’t very smooth. Discontinued.
Full JBL Boombox review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 10" x 18.1" x 7.7" (254.5 x 458.5 x 195.5 mm) |
| Discontinued | Yes |
| Drivers | 2x 65mm woofers + 2x 20mm tweeters with passive radiators |
| EQ | No |
| FM Tuner | No |
| IP Rating | IPX5 |
| MicroSD Playback | No |
| Microphone Input | No |
| Omnidirectional | No |
| Output Power | 60W AC / 40W battery |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 11.5 lbs / 5.2 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons