Short answer: the Zealot S89, if you are buying new. The Aiwa Exos-9 ranks higher than it (#9 vs #19 of 91 boombox speakers, 4.2/5 vs 4.0/5) but is discontinued, so only consider it used; the Zealot S89 is still sold new at $259.99.
Why pick the Aiwa Exos-9: Aiwa Exos-9 uses 6.5” dual voice coil woofer + 2x 3” midwoofers + 2x 1” silk dome tweeters. The catch: Bass is limited by its 44Hz specification.
The Zealot S89 is the deeper-bass, longer-running pick. A 16.1 lbs (7.3 kg) 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. Its bass reaches about 36Hz before falling 10dB, against 44Hz for the Aiwa Exos-9. It is rated for 40 hours of battery against 10 for the Aiwa Exos-9. It is rated IPX6, while the Aiwa Exos-9 has no water resistance. The tradeoff: At high volume, listener reports describe the bass as loose or muddy and the overall balance as less clear than better boombox speakers.
Buy the Zealot S89, since the Aiwa Exos-9 is discontinued and only worth hunting down used.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Aiwa Exos-9 | Zealot S89 | |
|---|---|---|
| Price | $250 Discontinued | $259.99 |
| Ranked | #9 of 91 in Boombox Size Portable Bluetooth Speakers | #19 of 91 in Boombox Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 44Hz | 36Hz |
| Battery Life | 10 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | No |
| EQ | Yes (5-band graphic EQ + 4 presets) | Yes (multiple modes) |
| IP Rating | None | IPX6 |
| Party Mode | No | Yes (PartyAdd up to 100 speakers) |
| Power Input | AC Power cable | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 15.2 lbs (6.9 kg) | 16.1 lbs (7.3 kg) |
| Power Bank | Yes (USB-A) | Yes (USB-A + USB-C) |
| USB Playback | No | Yes |
| FM Tuner | No | - |
| Microphone Input | Yes (with adapter) | - |
| Amplifier Power | 200W | 250W |
| Dimensions | 19.4” x 7.5” x 11.7” (492.8 x 190.5 x 297.2 mm) | 21.2” x 10.4” x 9.4” (538 x 265 x 240 mm) |
| Drivers | 6.5” dual voice coil woofer + 2x 3” midwoofers + 2x 1” silk dome tweeters | 130W subwoofer + 2x 40mm drivers + 2x tweeters |
| Digital Aux Input | No | No |
| Bluetooth Version | 4.2 | 5.3 |
| MicroSD Playback | - | Yes |
| Strap | - | No |
Related Speaker Comparisons
More top alternatives to Aiwa Exos-9:
- Tribit Stormbox Blast vs Aiwa Exos-9
- JBL Partybox Encore 2 vs Aiwa Exos-9
- JBL PartyBox On-The-Go 2 Plus vs Aiwa Exos-9
- JBL Partybox Encore Essential 2 vs Aiwa Exos-9
- Aiwa Exos-9 vs JBL Partybox Encore
Prices on this page were last checked October 4, 2026 at 9:58 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
Aiwa Exos-9: $250 Discontinued eBay
Newer model: the Aiwa Exos-10, ranked lower, rated 3.5/5.
Pros: Aiwa Exos-9 uses 6.5” dual voice coil woofer + 2x 3” midwoofers + 2x 1” silk dome tweeters. Its 6.9 kg, claimed 10 hours (Manufacturer specified) battery life, aux input and stereo playback make it a practical option for its intended room or portable use. It still sounds great against current models. Measured bass extension of 44Hz (-10dB).
Cons: Bass is limited by its 44Hz specification. There is no companion app. Discontinued.
Full Aiwa Exos-9 review and specifications →
| Amplifier Power | 200W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 44Hz |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 19.4” x 7.5” x 11.7” (492.8 x 190.5 x 297.2 mm) |
| Drivers | 6.5” dual voice coil woofer + 2x 3” midwoofers + 2x 1” silk dome tweeters |
| EQ | Yes (5-band graphic EQ + 4 presets) |
| FM Tuner | No |
| IP Rating | None |
| Microphone Input | Yes (with adapter) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cable |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 15.2 lbs (6.9 kg) |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
- Aiwa Exos-9 vs JBL Partybox Encore Essential
- Aiwa Exos-9 vs Vifa Copenhagen 2.0
- Aiwa Exos-9 vs JBL Partybox Encore
- Aiwa Exos-9 vs Harman Kardon Onyx Studio 8
- Aiwa Exos-9 vs JBL Partybox Encore Essential 2
- Aiwa Exos-9 vs JBL PartyBox On-The-Go 2 Plus
- Aiwa Exos-9 vs JBL Partybox Encore 2
- Aiwa Exos-9 vs Harman Kardon Onyx Studio 7
- See all 30 comparisons
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