These are not really the same size class, and that is the honest framing here. The JBL Boombox 3 ranks #21 of 70 boombox speakers at $399; the JBL Xtreme 4 ranks #36 of 75 large speakers at $380.
What the JBL Boombox 3 gets right: IP67 rated. 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.
On the JBL Xtreme 4 side: Removable battery. The catch: High priced.
Buy the JBL Boombox 3 at $399 if you want a boombox speaker. Buy the JBL Xtreme 4 at $380 if you want a large speaker instead.
Specifications Side By Side
| JBL Boombox 3 | JBL Xtreme 4 | |
|---|---|---|
| Price | $399.00 | $380 |
| Ranked | #21 of 70 in Boombox Size Portable Bluetooth Speakers | #36 of 75 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Aux Latency | 25ms | - |
| Bass Extension (-10dB) | 43Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | 100ms | 220ms |
| Max Volume | 110dB | 106dB |
| Party Mode | Yes (PartyBoost up to 100 speakers) | Yes (Auracast) |
| Power Input | AC Power cable | USB-C |
| Stereo | Yes | Yes |
| TWS | Yes | Yes |
| Weight | 14.8 lbs / 6.7 kg | 4.6 lbs / 2.1 kg |
| Bluetooth Codecs | SBC | SBC |
| App | No | Yes |
| EQ | No | Yes (5 band) |
| Power Bank | Yes | Yes |
| USB Playback | No | - |
| Built in Microphone | No | Yes |
| FM Tuner | No | - |
| Microphone Input | No | - |
| MicroSD Playback | No | - |
| Output Power | 180W AC / 136W battery | 100W |
| Dimensions | 48.2cm x 25.7cm x 20cm | 11.7" x 5.9" x 5.6" (297 x 149 x 141 mm) |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters | 2x 70mm woofers, 2x 19mm tweeters + 2x passive radiators |
| Removable Battery | - | Yes |
| Bluetooth Version | - | 5.3 |
| Frequency Response | - | 44Hz - 20kHz (Manufacturer specified) |
The Two Speakers In Full
JBL Boombox 3: $399.00 Amazon
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.
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.
| App | No |
|---|---|
| Aux Input | Yes |
| Aux Latency | 25ms |
| Bass Extension (-10dB) | 43Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 100ms |
| Built in Microphone | No |
| Dimensions | 48.2cm x 25.7cm x 20cm |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters |
| EQ | No |
| FM Tuner | No |
| IP Rating | IP67 |
| Max Volume | 110dB |
| MicroSD Playback | No |
| Microphone Input | No |
| Output Power | 180W AC / 136W battery |
| Party Mode | Yes (PartyBoost up to 100 speakers) |
| Power Bank | Yes |
| Power Input | AC Power cable |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 14.8 lbs / 6.7 kg |
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Earfun UBoom X vs JBL Boombox 3 - outdoor test
- Alan Ross Reviews: JBL Boombox 3 review vs JBL Boombox 2 a subwoofer and a 3 way equals heaven? 💋
- Alan Ross Reviews: W King T11 party boombox and Karaoke machine review vs T9, Stormbox Blast and Boombox 3.
- Dominik Reviews: JBL Boombox 3 vs 2x Tribit Stormbox Blast 🤑 Huge difference?
- Alan Ross Reviews: Not quite! JBL Authentics 300 review and sound test vs Boombox 3, Encore and Stormbox Blast
- Alan Ross Reviews: WiFi Edition: JBL Boombox 3 ultimate review! vs Boombox 3 Bluetooth edition
- Oluv Patreon: Earfun UBoom X vs JBL Boombox 3 - outdoor
- Jay’s Straight Up Reviews & More: Zealot ZE21 vs JBL Boombox 3 Tailgater Special @20ft. The Budget Beast Against the OG Boombox
- Jay’s Straight Up Reviews & More: Tribit Stormbox Blast 2 vs JBL Boombox 3 🔊 Got Bass? Let’s See How They Compare 😲 Battery Powered 🔋
- Picky Audio: SO CLOSE! Soundcore Boom 2 Plus vs JBL Boombox 3
- Picky Audio: Extended Sound Test (Soundcore Boom 2 Plus vs JBL Boombox 3)
- Alan Ross Reviews: W-King X20 JBL Boombox 3 killer! this should be illegal! - I was shocked!
- 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!
- 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: Tronsmart Bang Max Review, JBL Boombox 3 wannabe 130w
- 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
- AudioTribe: JBL Authentics 500 VS JBL Boombox 3 Sound Test Comparison
- Head-to-Head Comparisons
- Links
JBL Xtreme 4: $380 Amazon Bhphotovideo
Pros: Removable battery. Slightly deeper bass than Xtreme 3. Use this EQ for the best sound quality.
Cons: High priced. Some bass boost. Dip in the upper bass to midrange makes it sound strange which cannot be EQd out. Some upper mids and treble boost at high levels.
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 220ms |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Dimensions | 11.7" x 5.9" x 5.6" (297 x 149 x 141 mm) |
| Drivers | 2x 70mm woofers, 2x 19mm tweeters + 2x passive radiators |
| EQ | Yes (5 band) |
| Frequency Response | 44Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Max Volume | 106dB |
| Output Power | 100W |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes |
| Power Input | USB-C |
| Removable Battery | Yes |
| Stereo | Yes |
| TWS | Yes |
| Weight | 4.6 lbs / 2.1 kg |
- Reviews, Comparisons and Sound Samples
- JOY‘s 🎧3D🔈Audio-Show: JBL Charge 6, Xtreme 4 & Earfun UBoom X - taking sound to the top
- JOY‘s 🎧3D🔈Audio-Show: JBL Charge 6 vs JBL Xtreme 4 - outdoor test
- JOY‘s 🎧3D🔈Audio-Show: JBL Charge 6 vs JBL Xtreme 4 - basstest (bigger=better?)
- Alan Ross Reviews: JBL Xtreme 4 vs Flip 7 vs Charge 6 – The ULTIMATE JBL Speaker Showdown!
- Oluv Patreon: SoundCore Boom 3i - first impressions & EQs
- Mateusz Cholewa: TRIBIT StormBox LAVA Deep BASS 🆚 JBL XTREME 4
- Mateusz Cholewa: Marshall Middleton👌🎶 🆚 JBL Xtreme 4 🎶📢
- Oluv Patreon: JBL Xtreme 4 - sound analysis
- Oluv Patreon: JBL Xtreme 4 - unboxing & first impressions
- Oluv Patreon: Harman Kardon go+play 3 vs JBL Xtreme 4 - first impressions
- Dominik Reviews: JBL Xtreme 4 vs JBL Xtreme 3 Sound Test 😍 Best upgrade in the history? 😂
- Head-to-Head Comparisons
- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.