Short answer: the Aiwa Exos-9 on measured sound quality, the Yeahbox Sonic Boom Max 3 on price. The Aiwa Exos-9 ranks #8 of 75 boombox speakers at $250. The Yeahbox Sonic Boom Max 3 ranks #40 at $228.99, $21.01 cheaper.
The case for the Aiwa Exos-9: Still a great sounding speaker even against today’s models. The tradeoff: Features are lacking, generally not recommended anymore, not sold new anymore.
What the Yeahbox Sonic Boom Max 3 gets right: 200W RMS (300W peak) true 3-way, 5-driver array. Set against that: A budget import brand with limited independent testing - specs are manufacturer-claimed.
Worth knowing: the Aiwa Exos-9 is discontinued, though it still ranks #8 of 75 boombox speakers by sound quality, so a used unit beats most of what is still sold new.
Buy the Aiwa Exos-9 if sound quality matters more than the price. Buy the Yeahbox Sonic Boom Max 3 if the price matters more than sound quality.
Water resistance is not close: the Yeahbox Sonic Boom Max 3 is rated at IPX6 (powerful water jets), well ahead of the Aiwa Exos-9 at no water resistance.
Specifications Side By Side
| Aiwa Exos-9 | Yeahbox Sonic Boom Max 3 | |
|---|---|---|
| Price | $250 Discontinued | $228.99 |
| Ranked | #8 of 75 in Boombox Size Portable Bluetooth Speakers | #40 of 75 in Boombox Size Portable Bluetooth Speakers |
| App | No | Yes |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 44Hz | - |
| Battery Life | 10 hours (Manufacturer specified) | 111Wh (14.8V/7,500mAh) (Manufacturer specified) |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Built in Microphone | Yes | - |
| EQ | Yes (5-band graphic EQ + 4 presets) | Yes |
| IP Rating | None | IPX6 |
| Party Mode | No | - |
| Power Input | AC Power cable | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 15.2 lbs / 6.9 kg | 16.8 lbs / 7.64 kg |
| Power Bank | Yes (USB-A) | - |
| USB Playback | No | Yes |
| FM Tuner | No | - |
| Microphone Input | Yes (with adapter) | - |
| Output Power | 200W | 200W RMS / 300W Peak |
| Dimensions | 19.4" x 7.5" x 11.7" (492.8 x 190.5 x 297.2 mm) | 20.7" x 8.3" x 10.6" (525 x 210 x 268 mm) |
| Drivers | 6.5" dual voice coil woofer + 2x 3" midwoofers + 2x 1" silk dome tweeters | 189x114mm woofer, 2x 89mm midrange, 2x 38mm tweeters |
| Discontinued | Yes | - |
| Digital Aux Input | No | No |
| MicroSD Playback | - | Yes |
| Bluetooth Version | - | 5.3 |
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Prices on this page were last checked September 11, 2026 at 8:40 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
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.
Cons: Bass is limited by its 44Hz specification. There is no companion app. Discontinued.
Full Aiwa Exos-9 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 44Hz |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| 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) |
| Discontinued | Yes |
| 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 |
| Output Power | 200W |
| 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
- Head-to-Head Comparisons
Yeahbox Sonic Boom Max 3: $228.99 Amazon eBay
Pros: A large 3-way, 5-driver party speaker with claimed 200W RMS output, a 111Wh battery, USB-C fast charging, app EQ, TWS pairing, and aux, USB and microSD playback. Listener comparisons describe powerful bass, strong output and decent mids and highs for outdoor party use.
Cons: There is limited independent testing and the water/dust rating is reported inconsistently across listings. Listener comparisons find it less clear and refined than stronger boombox rivals, so its big bass and output are a better fit for parties than critical listening.
Full Yeahbox Sonic Boom Max 3 review and specifications →
| App | Yes |
|---|---|
| Aux Input | Yes |
| Battery Life | 111Wh (14.8V/7,500mAh) (Manufacturer specified) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 20.7" x 8.3" x 10.6" (525 x 210 x 268 mm) |
| Drivers | 189x114mm woofer, 2x 89mm midrange, 2x 38mm tweeters |
| EQ | Yes |
| IP Rating | IPX6 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Output Power | 200W RMS / 300W Peak |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 16.8 lbs / 7.64 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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