Short answer: the JBL PartyBox On-The-Go 2 Plus. It ranks #5 of 91 boombox speakers by sound quality, rated 4.4/5, at $349.95. The W-King X20S ranks #30, rated 3.8/5, at $150.99, $198.96 cheaper, which does not close the gap in sound quality.
The JBL PartyBox On-The-Go 2 Plus is the better-sounding choice. Well balanced with strong vocals, and its front-firing bass ports give it cleaner, smoother bass than other PartyBoxes, so even the Punchy bass boost setting never overpowers the vocals. Watch for: The bass has less kick and physical impact than the Encore 2 or PartyBox Club 120, and the Club 120 gets noticeably louder.
The W-King X20S is the tougher choice. Clearer and smoother than the larger W-King X20 at about half its size and weight, and in side by side tests it held its own against the Harman Kardon Go + Play 3, with nicer, more exposed mids and more volume. It is rated IPX7 against IPX4 for the JBL PartyBox On-The-Go 2 Plus. The tradeoff: Less bass and depth than the X20 and about 3dB quieter, and at maximum volume its mids and highs start to drown out the bass.
Buy the JBL PartyBox On-The-Go 2 Plus. It is rated higher for sound quality, and the $198.96 you would save on the W-King X20S does not close the gap.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL PartyBox On-The-Go 2 Plus | W-King X20S | |
|---|---|---|
| Price | $349.95 | $150.99 |
| Ranked | #5 of 91 in Boombox Size Portable Bluetooth Speakers | #30 of 91 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (JBL One app) | - |
| Aux Input | Yes | Yes |
| Battery Life | 15 hours (Manufacturer specified) | - |
| Built-in Microphone | No | Yes |
| EQ | Yes (app EQ, Deep and Punchy bass boost) | - |
| IP Rating | IPX4 | IPX7 |
| Party Mode | Yes (Auracast) | - |
| Power Bank | Yes (USB-C, 11V/2A) | - |
| Power Input | AC Power cord | - |
| Removable Battery | Yes | - |
| Stereo | Partially | - |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 14.2 lbs (6.45 kg) | 13.8 lbs (6.25 kg) |
| Wireless Microphones | Yes 1 Included | - |
| Microphone Input | No (wireless only) | - |
| Guitar Input | No | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, LC3 | - |
| Bluetooth Version | 5.4 | 5.4 |
| Amplifier Power | 100W RMS | 140W RMS (180W peak) |
| Dimensions | 19.7” x 10.2” x 8.7” (501 x 258 x 221 mm) | - |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters | - |
| Frequency Response | 40Hz - 20kHz (-6dB, Manufacturer specified) | - |
| Digital Aux Input | Yes (USB-C) | - |
| Lights | Yes | - |
| Strap | Yes (detachable shoulder strap) | Yes (detachable shoulder strap) |
| MicroSD Playback | - | Yes |
| FM Tuner | - | Yes |
Related Speaker Comparisons
More top alternatives to JBL PartyBox On-The-Go 2 Plus:
- Tribit Stormbox Blast vs JBL PartyBox On-The-Go 2 Plus
- JBL Partybox Encore 2 vs JBL PartyBox On-The-Go 2 Plus
- JBL PartyBox On-The-Go 2 Plus vs JBL Partybox Encore Essential 2
- JBL PartyBox On-The-Go 2 Plus vs JBL Partybox Encore
- JBL PartyBox On-The-Go 2 Plus vs JBL Partybox Encore Essential
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
JBL PartyBox On-The-Go 2 Plus: $349.95 Amazon eBay
Older model: the JBL Partybox On the Go (ranked lower, rated 3/5).
Pros: Well balanced with strong vocals, and its front-firing bass ports give it cleaner, smoother bass than other PartyBoxes, so even the Punchy bass boost setting never overpowers the vocals. It gets a touch louder than the PartyBox Encore 2. EasySing AI vocal removal strips vocals from any song on the speaker itself, with 25%, 50% or 100% removal, and the included rechargeable wireless mic has a tight pickup pattern that rejects handling noise. A removable 34Wh battery shared with the Encore 2 and PartyBox 120, a claimed 15 hours, a padded shoulder strap, USB-C playback and charging, a 3.5mm aux input, Auracast and a light show.
Cons: The bass has less kick and physical impact than the Encore 2 or PartyBox Club 120, and the Club 120 gets noticeably louder. There is no wired microphone or guitar input, so more mics means buying JBL’s EasySing mics separately, and AI vocal removal is disabled while the speaker is linked to other speakers over Auracast. Real world battery life is closer to 7 hours at 80% volume with lights and bass boost on. IPX4 only covers splashes, the grille dents easily, and the battery must be installed for it to run even when plugged in.
Full JBL PartyBox On-The-Go 2 Plus review and specifications →
| Amplifier Power | 100W RMS |
|---|---|
| App | Yes (JBL One app) |
| Aux Input | Yes |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, LC3 |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 19.7” x 10.2” x 8.7” (501 x 258 x 221 mm) |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters |
| EQ | Yes (app EQ, Deep and Punchy bass boost) |
| Frequency Response | 40Hz - 20kHz (-6dB, Manufacturer specified) |
| Guitar Input | No |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | No (wireless only) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C, 11V/2A) |
| Power Input | AC Power cord |
| Removable Battery | Yes |
| Stereo | Partially |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 14.2 lbs (6.45 kg) |
| Wireless Microphones | Yes 1 Included |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- JBL PartyBox On-The-Go 2 Plus vs JBL Partybox Encore
- JBL PartyBox On-The-Go 2 Plus vs JBL Partybox Encore Essential
- JBL PartyBox On-The-Go 2 Plus vs Tribit Stormbox Blast
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- JBL PartyBox On-The-Go 2 Plus vs Harman Kardon Onyx Studio 8
- See all 58 comparisons
W-King X20S: $150.99 AliExpress W-King eBay
Pros: Clearer and smoother than the larger W-King X20 at about half its size and weight, and in side by side tests it held its own against the Harman Kardon Go + Play 3, with nicer, more exposed mids and more volume. 140W RMS (180W peak), IPX7, Bluetooth 5.4, a built-in microphone, TF card, USB and aux playback, FM radio, a carry handle and a shoulder strap.
Cons: Less bass and depth than the X20 and about 3dB quieter, and at maximum volume its mids and highs start to drown out the bass. With a flat EQ the bass is cut off, so it needs the bass boost. The JBL PartyBox Encore Essential 2 sounded better in a direct comparison. Sold direct from W-King in the US.
Full W-King X20S review and specifications →
| Amplifier Power | 140W RMS (180W peak) |
|---|---|
| Aux Input | Yes |
| Bluetooth | Yes |
| Bluetooth Version | 5.4 |
| Built-in Microphone | Yes |
| FM Tuner | Yes |
| IP Rating | IPX7 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 13.8 lbs (6.25 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Jagist reviews: W-king X20 Vs W-king X20S!!! More from Jagistreviews →
- Jagist reviews: W-king X20s Vs Harman Kardon Go Plus Play 3!!!
- Mateusz Cholewa: 140W W-KING X20S vs 160W HK Go Plus Play 3 More from Mateusz Cholewa →
- Jagist reviews: Jbl Encore Essential 2 Vs W-king X20s!!!
- Jagist reviews: W-king X20s Vs Tribit Stormbox Blast!!!
- Head-to-Head Comparisons