Short answer: the Zealot S89. It ranks #19 of 89 boombox speakers by sound quality, rated 4.0/5, at $259.99. The Aiwa Exos-10 ranks #38, rated 3.5/5, at $159.99, $100 cheaper, which does not close the gap in sound quality.
What the Zealot S89 does well: A 7.3kg boombox with a claimed 36Hz bass extension, 40-hour battery life, IPX6 protection, USB-C charging, aux, USB and microSD playback, TWS and multi-speaker PartyAdd. The catch: At high volume, listener reports describe the bass as loose or muddy and the overall balance as less clear than better boombox speakers.
What the Aiwa Exos-10 does well: Clear, clean treble with good separation of instruments and vocals, and no distortion even near full volume in a side by side test against the W-King X20, where it kept up in loudness at 90%. The catch: It lacks deep bass: even with bass maxed it rolls off around 50Hz, where the W-King X20 and Zealot boomboxes reach deeper, and it is about 2dB quieter at full volume.
Buy the Zealot S89. It is rated higher for sound quality, and the $100 you would save on the Aiwa Exos-10 does not close the gap.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Zealot S89 | Aiwa Exos-10 | |
|---|---|---|
| Price | $259.99 | $159.99 |
| Ranked | #19 of 89 in Boombox Size Portable Bluetooth Speakers | #38 of 89 in Boombox Size Portable Bluetooth Speakers |
| App | No | - |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 36Hz | - |
| Battery Life | 40 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| EQ | Yes (multiple modes) | Yes (bass and treble) |
| IP Rating | IPX6 | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | - |
| MicroSD Playback | Yes | - |
| Party Mode | Yes (PartyAdd up to 100 speakers) | Yes (Party Sync, 100+ speakers) |
| Power Input | USB-C | - |
| Stereo | Yes | Partially |
| Omnidirectional | No | - |
| TWS | Yes | - |
| Weight | 16.1 lbs (7.3 kg) | - |
| Power Bank | Yes (USB-A + USB-C) | - |
| USB Playback | Yes | Yes |
| Built-in Microphone | No | - |
| Amplifier Power | 250W | 200W RMS (40W x 2 + 120W) |
| Dimensions | 21.2” x 10.4” x 9.4” (538 x 265 x 240 mm) | - |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters | 6.5” (165mm) subwoofer + full-range drivers, 4 passive radiators |
| Digital Aux Input | No | - |
| Bluetooth Version | 5.3 | 5.0 |
| Strap | No | - |
| Removable Battery | - | No |
| FM Tuner | - | Yes |
Related Speaker Comparisons
More worthwhile head-to-heads for Zealot S89:
- Tribit Stormbox Blast vs Zealot S89
- Harman Kardon Go + Play 3 vs Zealot S89
- JBL Partybox Encore 2 vs Zealot S89
- JBL PartyBox On-The-Go 2 Plus vs Zealot S89
- JBL Partybox Encore Essential 2 vs Zealot S89
Prices on this page were last checked September 30, 2026 at 2:57 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: $259.99 Amazon AliExpress eBay
Pros: A 7.3kg boombox with a claimed 36Hz bass extension, 40-hour battery life, IPX6 protection, USB-C charging, aux, USB and microSD playback, TWS and multi-speaker PartyAdd. Listener comparisons find it capable of very high output and substantial bass for outdoor use. A great value for its bass, battery life and maximum volume. Measured bass extension of 36Hz (-10dB).
Cons: At high volume, listener reports describe the bass as loose or muddy and the overall balance as less clear than better boombox speakers. The heavy cabinet and basic finish also make it less polished for daily portability, while its multiple EQ modes cannot substitute for a genuinely neutral tuning.
Full Zealot S89 review and specifications →
| Amplifier Power | 250W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 36Hz |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| 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 |
| Party Mode | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes (USB-A + USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| 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 →
- Head-to-Head Comparisons
Aiwa Exos-10: $159.99 Amazon eBay
Older model: the Aiwa Exos-9 (ranked higher, rated 4.2/5).
Pros: Clear, clean treble with good separation of instruments and vocals, and no distortion even near full volume in a side by side test against the W-King X20, where it kept up in loudness at 90%. A 200W RMS tri-amplified design with a 6.5” woofer and four passive radiators, FM radio with presets, aux and USB inputs, a remote, analog-style VU meters and Party Sync with 100+ speakers.
Cons: It lacks deep bass: even with bass maxed it rolls off around 50Hz, where the W-King X20 and Zealot boomboxes reach deeper, and it is about 2dB quieter at full volume. Owners comparing it with the Aiwa Exos 9 it replaces find the older model clearer with tighter bass, and the Exos 10 drops the Exos 9’s 5-band EQ (only bass and treble) and removable battery. Claimed battery life is 12 hours.
Full Aiwa Exos-10 review and specifications →
| Amplifier Power | 200W RMS (40W x 2 + 120W) |
|---|---|
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Version | 5.0 |
| Drivers | 6.5” (165mm) subwoofer + full-range drivers, 4 passive radiators |
| EQ | Yes (bass and treble) |
| FM Tuner | Yes |
| Party Mode | Yes (Party Sync, 100+ speakers) |
| Removable Battery | No |
| Stereo | Partially |
| USB Playback | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Aiwa Exos-10 vs W-King X20
- Aiwa Exos-10 vs JBL Authentics 300
- Aiwa Exos-10 vs Soundcore Boom 2 Plus
- Aiwa Exos-10 vs Tribit Stormbox Blast 2
- Aiwa Exos-10 vs JBL Boombox 3
- Aiwa Exos-10 vs JBL Boombox 3 Wifi
- Aiwa Exos-10 vs JBL Boombox 4
- Aiwa Exos-10 vs Onn Medium Party Speaker Gen 2
- See all 22 comparisons