Short answer: the Zealot S89. It ranks #16 of 73 boombox speakers by sound quality at $193.58; the JBL Boombox 3 ranks #21 and costs $349.95, 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. Watch for: On the heavy side.
What the JBL Boombox 3 gets right: IP67 rated. The catch: Dips in mid bass range which makes the bass sound undefined, bass boosted, peaky at 700hz, not quite as good mids and treble as the Blast.
Buy the Zealot S89. It ranks higher for sound quality than the JBL Boombox 3 and costs less, so there is no real case for the other one.
If battery life is a priority, the Zealot S89 is rated for 40 hours versus 24 hours for the JBL Boombox 3.
Specifications Side By Side
| Zealot S89 | JBL Boombox 3 | |
|---|---|---|
| Price | $193.58 | $349.95 |
| Ranked | #16 of 73 in Boombox Size Portable Bluetooth Speakers | #21 of 73 in Boombox Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 36Hz | 43Hz |
| Battery Life | 40 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| EQ | Yes (multiple modes) | No |
| IP Rating | IPX6 | IP67 |
| Bluetooth Codecs | SBC | SBC |
| MicroSD Playback | Yes | No |
| Party Mode | Yes (PartyAdd up to 100 speakers) | Yes (PartyBoost up to 100 speakers) |
| Power Input | USB-C | AC Power cable |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 16.1 lbs / 7.3 kg | 14.8 lbs / 6.7 kg |
| Power Bank | Yes (USB-A + USB-C) | Yes (USB-A) |
| USB Playback | Yes | No |
| Built in Microphone | No | No |
| Output Power | 250W | 180W AC / 136W battery |
| Dimensions | 21.2" x 10.4" x 9.4" (538 x 265 x 240 mm) | 19" x 10.1" x 7.9" (482 x 257 x 200 mm) |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters |
| Digital Aux Input | No | No |
| Aux Latency | - | 25ms |
| Bluetooth Latency | - | 100ms |
| Max Volume | - | 110dB |
| FM Tuner | - | No |
| Microphone Input | - | No |
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- Zealot S89 vs Harman Kardon Go + Play 2
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The Two Speakers In Full
Zealot S89: $193.58 Aliexpress Amazon
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 |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Zealot S89 vs Yeahbox Boom Max3 - indoor listening test
- Oluv Patreon: Zealot S89 vs Yeahbox Sonic Boom Max3 - outdoor test
- Dominik Reviews: Zealot S89 vs JBL Boombox 4 - JBL Alternative? Sound Test
- Jagist reviews: Jbl Boombox 4 Vs Zealot S89!!!
- Techder Audios: ZEALOT S89 VS ZEALOT ZE01 EXTREME POWERFULL VS COMPACTER BASS PERFORMANCE!
- 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 19 comparisons
JBL Boombox 3: $349.95 Amazon
Pros: IP67 rated. 24 hour battery life (6.5 hour charge time). Doubles as a power bank. PartyBoost links up to 100 compatible JBL speakers. Three-way speaker system with subwoofer.
Cons: Dips in mid bass range which makes the bass sound undefined, bass boosted, peaky at 700hz, not quite as good mids and treble as the Blast.
Full JBL Boombox 3 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Aux Latency | 25ms |
| Bass Extension (-10dB) | 43Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 100ms |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 19" x 10.1" x 7.9" (482 x 257 x 200 mm) |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters |
| EQ | No |
| FM Tuner | No |
| IP Rating | IP67 |
| Max Volume | 110dB |
| MicroSD Playback | No |
| Microphone Input | No |
| Omnidirectional | No |
| Output Power | 180W AC / 136W battery |
| Party Mode | Yes (PartyBoost up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cable |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 14.8 lbs / 6.7 kg |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Earfun UBoom X vs JBL Boombox 3 - outdoor test
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- Alan Ross Reviews: W King T11 party boombox and Karaoke machine review vs T9, Stormbox Blast and Boombox 3.
- Dominik Reviews: JBL Boombox 3 vs 2x Tribit Stormbox Blast 🤑 Huge difference?
- Alan Ross Reviews: Not quite! JBL Authentics 300 review and sound test vs Boombox 3, Encore and Stormbox Blast
- Alan Ross Reviews: WiFi Edition: JBL Boombox 3 ultimate review! vs Boombox 3 Bluetooth edition
- Oluv Patreon: Earfun UBoom X vs JBL Boombox 3 - outdoor
- Jay’s Straight Up Reviews & More: Zealot ZE21 vs JBL Boombox 3 Tailgater Special @20ft. The Budget Beast Against the OG Boombox
- Jay’s Straight Up Reviews & More: Tribit Stormbox Blast 2 vs JBL Boombox 3 🔊 Got Bass? Let’s See How They Compare 😲 Battery Powered 🔋
- Picky Audio: SO CLOSE! Soundcore Boom 2 Plus vs JBL Boombox 3
- Picky Audio: Extended Sound Test (Soundcore Boom 2 Plus vs JBL Boombox 3)
- Alan Ross Reviews: W-King X20 JBL Boombox 3 killer! this should be illegal! - I was shocked!
- Jay’s Straight Up Reviews & More: New! W-King X20 vs JBL Boombox 3 🛜 Head to Head 🔋Battery Powered 📊Custom EQ - Links In Description
- Alan Ross Reviews: W-King X20 JBL Boombox 3 killer! this should be illegal! - I was shocked!
- Jay’s Straight Up Reviews & More: New! W-King X20 vs JBL Boombox 3 🛜 Head to Head 🔋Battery Powered 📊Custom EQ - Links In Description
- Alan Ross Reviews: Tronsmart Bang Max Review, JBL Boombox 3 wannabe 130w
- Jay’s Straight Up Reviews & More: Skullcandy BARREL XT vs JBL Boombox 3 🤯Budget Banger vs Reigning Champ 🔋 Battery Powered 🏠 Indoors
- Jay’s Straight Up Reviews & More: SONY ULT Field 7 💣vs JBL Boombox 3 🧨 Showdown! 🪇Let’s Shake it Up! 🔋Battery Powered Basement Battle
- AudioTribe: JBL Authentics 500 VS JBL Boombox 3 Sound Test Comparison
- Reddit Search for JBL Boombox 3 Review
- Head-to-Head Comparisons
- JBL Boombox 3 vs Tribit Stormbox Blast 2
- JBL Boombox 3 vs JBL Boombox 3 Wifi
- JBL Boombox 3 vs LG Xboom Stage 301
- JBL Boombox 3 vs Harman Kardon Onyx Studio 5
- JBL Boombox 3 vs Harman Kardon Go + Play 2
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- See all 24 comparisons


