Short answer: the W-King X20, if you are buying new. The Aiwa Exos-9 ranks higher than it (#9 vs #38 of 91 boombox speakers, 4.2/5 vs 3.5/5) but is discontinued, so only consider it used; the W-King X20 is still sold new at $219.98.
The Aiwa Exos-9 is the better-sounding choice. It still sounds great against current models.
The W-King X20 is the longer-running, tougher choice. It is rated for 24 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: Rising frequency response but upper treble rolled off, 700Hz and 1.2kHz peaks.
Buy the W-King X20 if you want one new; the Aiwa Exos-9 is discontinued, so only look for it used.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Aiwa Exos-9 | W-King X20 | |
|---|---|---|
| Price | $250 Discontinued | $219.98 after coupon |
| Ranked | #9 of 91 in Boombox Size Portable Bluetooth Speakers | #38 of 91 in Boombox Size Portable Bluetooth Speakers |
| App | No | Yes (W-King app) |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 44Hz | ~42Hz |
| Battery Life | 10 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | No |
| EQ | Yes (5-band graphic EQ + 4 presets) | Yes (App + button modes) |
| IP Rating | None | IPX6 |
| Party Mode | No | No |
| Power Input | AC Power cable | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 15.2 lbs (6.9 kg) | 15.9 lbs (7200 g) |
| Power Bank | Yes (USB-A) | Yes (USB-A) |
| USB Playback | No | Yes |
| FM Tuner | No | - |
| Microphone Input | Yes (with adapter) | - |
| Amplifier Power | 200W | 330W peak / 200W RMS |
| Dimensions | 19.4” x 7.5” x 11.7” (492.8 x 190.5 x 297.2 mm) | 19.9” x 8.5” x 10.6” (506 x 217 x 270 mm) |
| Drivers | 6.5” dual voice coil woofer + 2x 3” midwoofers + 2x 1” silk dome tweeters | 7.5” subwoofer + drivers |
| Digital Aux Input | No | No |
| Bluetooth Version | 4.2 | 5.4 |
| Maximum SPL | - | 112dB (measured by Alan Ross Reviews) |
| MicroSD Playback | - | Yes |
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
W-King X20: $219.98 after coupon Amazon eBay
Pros: 200W RMS output with 330W peak power, 112dB max volume, exceptional 24-hour battery life with power bank, IPX6 waterproof, EQ with app control and button modes, 7.5-inch subwoofer, Bluetooth 5.3, dual pairing, MicroSD and USB playback, AUX input, TWS stereo mode with 240W combined. Measured bass extension of ~42Hz (-10dB).
Cons: Rising frequency response but upper treble rolled off, 700Hz and 1.2kHz peaks
Full W-King X20 review and specifications →
| Amplifier Power | 330W peak / 200W RMS |
|---|---|
| App | Yes (W-King app) |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~42Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 19.9” x 8.5” x 10.6” (506 x 217 x 270 mm) |
| Drivers | 7.5” subwoofer + drivers |
| EQ | Yes (App + button modes) |
| IP Rating | IPX6 |
| Maximum SPL | 112dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 15.9 lbs (7200 g) |
- Links
- Reviews, Comparisons and Sound Samples
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- Head-to-Head Comparisons