Short answer: the JBL Boombox 3. It ranks #27 of 98 boombox speakers by sound quality, rated 3.8/5, at $349.95. The W-King D20 ranks #39, rated 3.6/5, at $193, $156.95 cheaper, a saving that is not big enough to make up the sound-quality gap.
What the JBL Boombox 3 does well: 24 hour battery life (6.5 hour charge time). It links with other speakers (PartyBoost up to 100 speakers), which the W-King D20 cannot. The tradeoff: Dips in mid bass range which makes the bass sound undefined, bass boosted, peaky at 700Hz, not quite as good mids and treble as the Blast.
Why pick the W-King D20: Comes with 2 wireless microphones. It has an adjustable EQ, which the JBL Boombox 3 lacks. Watch for: Rising frequency response but upper treble rolled off, 700Hz and 1.2kHz peaks.
Buy the JBL Boombox 3. It is rated higher for sound quality, and the $156.95 you would save on the W-King D20 does not close the gap.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Boombox 3 | W-King D20 | |
|---|---|---|
| Price | $349.95 | $193 |
| Ranked | #27 of 98 in Boombox Size Portable Bluetooth Speakers | #39 of 98 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Aux Latency | 25ms | - |
| Bass Extension (-10dB) | 43Hz | ~42Hz |
| Battery Life | 24 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX6 |
| Bluetooth Latency | 100ms | - |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | 112dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (PartyBoost up to 100 speakers) | No |
| Power Input | AC Power cable | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 14.8 lbs (6.7 kg) | 14.3 lbs (6500 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | Yes (W-King app) |
| EQ | No | Yes (App + button modes) |
| Power Bank | Yes (USB-A) | Yes |
| USB Playback | No | Yes |
| Built-in Microphone | No | No |
| FM Tuner | No | - |
| Microphone Input | No | - |
| MicroSD Playback | No | Yes |
| Amplifier Power | 180W AC / 136W battery | 200W |
| Dimensions | 19” x 10.1” x 7.9” (482 x 257 x 200 mm) | 19.9” x 8.5” x 10.6” (506 x 217 x 270 mm) |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters | 4.5” + 3.5” drivers + 1.2” tweeters |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.3 | 5.3 |
| Strap | No | - |
| Wireless Microphones | - | Yes |
Watch Them Compared
Videos and reviews that test both speakers side by side.
- Jay’s Straight Up Reviews & More: New! W-King X20 vs JBL Boombox 3 🛜 Head to Head 🔋Battery Powered 📊Custom EQ - Links In Description
- Alan Ross Reviews: W-King X20 JBL Boombox 3 killer! this should be illegal! - I was shocked!
Related Speaker Comparisons
More top alternatives to JBL Boombox 3:
- EarFun Uboom X vs JBL Boombox 3
- JBL Boombox 3 vs Tribit Stormbox Blast
- Harman Kardon Go + Play 3 vs JBL Boombox 3
- JBL Partybox Encore 2 vs JBL Boombox 3
- JBL PartyBox On-The-Go 2 Plus vs JBL Boombox 3
Prices on this page were last checked October 12, 2026 at 4:13 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
JBL Boombox 3: $349.95 Amazon $349.95 eBay
Newer model: the JBL Boombox 4, ranked higher, rated 4/5, released Jul 2025. It adds USB audio input, app control, adjustable EQ and AAC, but drops the aux input. Water resistance goes from IP67 to IP68.
Older models: the JBL Boombox 2 (ranked lower, rated 3.5/5) and the JBL Boombox (ranked lower, rated 2.9/5). See every JBL Boombox generation.
Same family: the JBL Boombox 3 Wifi (larger model, ranked higher, rated 3.8/5).
Pros: IP67 rated. 24 hour battery life (6.5 hour charge time). Doubles as a power bank. PartyBoost links up to 100 compatible JBL speakers. Three-way speaker system with subwoofer. Measured bass extension of 43Hz (-10dB).
Cons: Dips in mid bass range which makes the bass sound undefined, bass boosted, peaky at 700Hz, not quite as good mids and treble as the Blast.
Full JBL Boombox 3 review and specifications →
| Released | Aug 2022 (4 years ago) |
|---|---|
| Amplifier Power | 180W AC / 136W battery |
| App | No |
| Aux Input | Yes |
| Aux Latency | 25ms |
| Bass Extension (-10dB) | 43Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 100ms |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 19” x 10.1” x 7.9” (482 x 257 x 200 mm) |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters |
| EQ | No |
| FM Tuner | No |
| IP Rating | IP67 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) |
| MicroSD Playback | No |
| Microphone Input | No |
| Omnidirectional | No |
| Party Mode | Yes (PartyBoost up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cable |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 14.8 lbs (6.7 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- JOY‘s 🎧3D🔈Audio-Show: JBL Boombox 4 vs Boombox 3 - any improvement? More from Oluv’Sone →
- JOY‘s 🎧3D🔈Audio-Show: JBL Boombox 4 vs Boombox 3 - old one sounding better? 🤔
- Oluv Patreon: Earfun UBoom X vs JBL Boombox 3 - outdoor test
- Oluv Patreon: Earfun UBoom X vs JBL Boombox 3 - outdoor
- Alan Ross Reviews: JBL Boombox 3 review vs JBL Boombox 2 a subwoofer and a 3 way equals heaven? 💋 More from alanrossreviews →
- Alan Ross Reviews: WiFi Edition: JBL Boombox 3 ultimate review! vs Boombox 3 Bluetooth edition
- Alan Ross Reviews: Tronsmart Bang Max Review, JBL Boombox 3 wannabe 130w
- Alan Ross Reviews: JBL Boombox 4 Compared to Boombox 3 & 3 WiFi – Worth the Upgrade?
- Alan Ross Reviews: W King T11 party boombox and Karaoke machine review vs T9, Stormbox Blast and Boombox 3.
- Alan Ross Reviews: W-King X20 JBL Boombox 3 killer! this should be illegal! - I was shocked!
- Alan Ross Reviews: JBL Distortion Fest vs my favorite speaker today! I wasn’t expecting this!
- Alan Ross Reviews: This changed my opinion on JBL speakers!
- Alan Ross Reviews: Not quite! JBL Authentics 300 review and sound test vs Boombox 3, Encore and Stormbox Blast
- Dominik Reviews: JBL Boombox 3 vs 2x Tribit Stormbox Blast 🤑 Huge difference? More from Dominik Reviews →
- Jay’s Straight Up Reviews & More: Zealot ZE21 vs JBL Boombox 3 Tailgater Special @20ft. The Budget Beast Against the OG Boombox More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Tribit Stormbox Blast 2 vs JBL Boombox 3 🔊 Got Bass? Let’s See How They Compare 😲 Battery Powered 🔋
- Jay’s Straight Up Reviews & More: Skullcandy BARREL XT vs JBL Boombox 3 🤯Budget Banger vs Reigning Champ 🔋 Battery Powered 🏠 Indoors
- Jay’s Straight Up Reviews & More: SONY ULT Field 7 💣vs JBL Boombox 3 🧨 Showdown! 🪇Let’s Shake it Up! 🔋Battery Powered Basement Battle
- Jay’s Straight Up Reviews & More: JBL Authentics 500 vs Boombox 3 🙮💨 Bluetooth Speaker Sound Comparison. Plugged In 🔌 Get Your 💵 Out!
- Jay’s Straight Up Reviews & More: New! W-King X20 vs JBL Boombox 3 🛜 Head to Head 🔋Battery Powered 📊Custom EQ - Links In Description
- Picky Audio: SO CLOSE! Soundcore Boom 2 Plus vs JBL Boombox 3 More from pickyaudio →
- Picky Audio: Extended Sound Test (Soundcore Boom 2 Plus vs JBL Boombox 3)
- YARNZO Tech: Jbl boombox3 vs zealot s98 full sound comparison 🔊🎧 More from YARNZO Tech →
- GYMCADDY: Bose S1 Pro Vs JBL Boombox 3 & Sony ULT 7 More from GYMCADDY →
- AudioTribe: JBL Authentics 500 VS JBL Boombox 3 Sound Test Comparison
- flmclau: Zealot s98 160W!!!quick unboxing and sound test,is it better than Jbl boombox 3?
- Head-to-Head Comparisons
- JBL Boombox 3 vs JBL Boombox 3 Wifi
- JBL Boombox 3 vs Bugani Brief Pro
- JBL Boombox 3 vs Ruimatech RM-10
- JBL Boombox 3 vs Zealot S98
- JBL Boombox 3 vs Harman Kardon Onyx Studio 5
- JBL Boombox 3 vs W-King X20S
- JBL Boombox 3 vs Tribit Stormbox Blast 2
- JBL Boombox 3 vs Harman Kardon Go + Play 2
- See all 96 comparisons
W-King D20: $193 AliExpress $193 eBay
Pros: Comes with 2 wireless microphones. Measured bass extension of ~42Hz (-10dB).
Cons: Rising frequency response but upper treble rolled off, 700Hz and 1.2kHz peaks
Full W-King D20 review and specifications →
| Released | Feb 2024 (2 years ago) |
|---|---|
| Amplifier Power | 200W |
| 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 | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 19.9” x 8.5” x 10.6” (506 x 217 x 270 mm) |
| Drivers | 4.5” + 3.5” drivers + 1.2” tweeters |
| 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 |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 14.3 lbs (6500 g) |
| Wireless Microphones | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: pound for pound battle! WKing X20 D20 vs Stormbox Blast! OMG its a shocker! More from alanrossreviews →
- Alan Ross Reviews: W-King X20 JBL Boombox 3 killer! this should be illegal! - I was shocked!
- Alan Ross Reviews: Soundcore Boom 2 Plus Review - worst boombox speaker under $400?
- Mateusz Cholewa: Soundcore RAVE 3 🤗v🆚s W- KING X20🎶 More from Mateusz Cholewa →
- Jay’s Straight Up Reviews & More: New! W-King X20 vs JBL Boombox 3 🛜 Head to Head 🔋Battery Powered 📊Custom EQ - Links In Description More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: W-King X20 vs Tribit Stormbox Blast 🍿 Garage Battle of Boombox Speakers 🍻Custom & Standard EQ’s
- Jagist reviews: LG xboom Stage 301 Vs W-king X20!!! More from Jagistreviews →
- Jagist reviews: W-king X20 Vs Jbl Encore!!! 😁😁😁
- Jagist reviews: W-king X20 Vs Skullcandy Barrel XT!!! 🤔😋
- Head-to-Head Comparisons