These are not really the same size class, and that is the honest framing here. The JBL Partybox Encore 2 ranks #4 of 76 boombox speakers by sound quality at $330; the JBL Xtreme 4 ranks #40 of 82 large speakers by sound quality at $309.95.
What the JBL Partybox Encore 2 does well: The Encore 2 improves the original with dome tweeters, a less boomy balance, slightly deeper bass, longer battery life and two included wireless microphones. The tradeoff: It still lacks some upper-bass punch and cannot match the scale of the larger PartyBoxes.
What the JBL Xtreme 4 does well: A rugged 2.1kg portable with IP67 protection, a replaceable battery, USB-C power-bank output, Auracast, stereo pairing and a useful 5-band app EQ. The tradeoff: It cannot produce the deep rumble of a larger speaker, and bass compression increases near maximum volume.
Buy the JBL Partybox Encore 2 at $330 if you want a boombox speaker. Buy the JBL Xtreme 4 at $309.95 if you want a large speaker instead.
If battery life is a priority, the JBL Xtreme 4 is rated for 24 hours versus 15 hours for the JBL Partybox Encore 2.
Water resistance is not close: the JBL Xtreme 4 is rated at IP67 (brief submersion), well ahead of the JBL Partybox Encore 2 at IPX4 (splashing).
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Partybox Encore 2 | JBL Xtreme 4 | |
|---|---|---|
| Price | $330 | $309.95 |
| Ranked | #4 of 76 in Boombox Size Portable Bluetooth Speakers | #40 of 82 in Large Size Portable Bluetooth Speakers |
| App | Yes (JBL PartyBox app) | Yes |
| Aux Input | Yes | No |
| Battery Life | 15 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | No | Yes |
| EQ | Yes (7 band App EQ) | Yes (5 band) |
| IP Rating | IPX4 | IP67 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | 106dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Power Bank | Yes (USB-C) | Yes (USB-C) |
| Power Input | AC Power cord | USB-C |
| Removable Battery | Yes | Yes |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Weight | 14.1 lbs (6.4 kg) | 4.6 lbs (2.1 kg) |
| Wireless Microphones | Yes 2 Included | - |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 5.4 | 5.3 |
| Amplifier Power | 100W RMS | 100W |
| Dimensions | 12.6” x 13.3” x 10.4” (319.5 x 338.6 x 263 mm) | 11.7” x 5.9” x 5.6” (297 x 149 x 141 mm) |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters | 2x 70mm woofers, 2x 19mm tweeters + 2x passive radiators |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | No | Yes (detachable shoulder strap) |
| Bluetooth Latency | - | 220ms |
| Frequency Response | - | 44Hz - 20kHz (Manufacturer specified) |
Related Speaker Comparisons
More worthwhile head-to-heads for JBL Partybox Encore 2:
- Earfun Uboom X vs JBL Partybox Encore 2
- Tribit Stormbox Blast vs JBL Partybox Encore 2
- Harman Kardon Go + Play 3 vs JBL Partybox Encore 2
- JBL Partybox Encore 2 vs JBL PartyBox On-The-Go 2 Plus
- JBL Partybox Encore 2 vs JBL Partybox Encore Essential 2
Prices on this page were last checked September 26, 2026 at 11:14 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 Encore 2: $330 Sam’s Club eBay
Older model: the JBL Partybox Encore (rated 4.3/5).
Pros: The Encore 2 improves the original with dome tweeters, a less boomy balance, slightly deeper bass, longer battery life and two included wireless microphones. Its compact karaoke-ready design and 7-band EQ make it more adaptable indoors than the earlier Encore.
Cons: It still lacks some upper-bass punch and cannot match the scale of the larger PartyBoxes. The main value is compact karaoke convenience rather than full-range party output.
Full JBL Partybox Encore 2 review and specifications →
| Amplifier Power | 100W RMS |
|---|---|
| App | Yes (JBL PartyBox app) |
| Aux Input | Yes |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 12.6” x 13.3” x 10.4” (319.5 x 338.6 x 263 mm) |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters |
| EQ | Yes (7 band App EQ) |
| IP Rating | IPX4 |
| Lights | Yes |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C) |
| Power Input | AC Power cord |
| Removable Battery | Yes |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 14.1 lbs (6.4 kg) |
| Wireless Microphones | Yes 2 Included |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL giving it to us large! The good, The bad, The diabolical! More from alanrossreviews →
- M1M Tech Channel: Partybox Killer? 2x Earfun UBoom X stärker als JBL Encore 2 ? More from M1MTechChannel →
- M1M Tech Channel: JBL Partybox Encore 2 Ein fettes Bass Upgrade
- Mateusz Cholewa: JBL Partybox ENCORE 2👌FULL TEST🆚 JBL Partybox ENCORE 1 More from Mateusz Cholewa →
- Mateusz Cholewa: Jbl Partybox Encore 2 📦UNBOXING. Short TEST AUDIO z ENCORE 1👌
- Mateusz Cholewa: JBL Encore 2 Partybox Deep Bass 🆚 Jbl Boombox 3 WiFi 🎶
- Dominik Reviews: JBL Partybox Encore 2 vs JBL Boombox 3 WiFi - Sound Test - Wide vs Narrow Soundstage! More from Dominik Reviews →
- M1M Tech Channel: JBL Partybox Encore 2 Ein fettes Bass Upgrade
- M1MTechChannel: Welche JBL Partybox ist die BESTE ? Alle Partyboxen im Vergleich | 2026
- Head-to-Head Comparisons
- JBL Partybox Encore 2 vs Harman Kardon Go + Play 3
- JBL Partybox Encore 2 vs JBL PartyBox On-The-Go 2 Plus
- JBL Partybox Encore 2 vs Tribit Stormbox Blast
- JBL Partybox Encore 2 vs JBL Partybox Encore Essential 2
- JBL Partybox Encore 2 vs JBL Partybox Encore
- JBL Partybox Encore 2 vs Earfun Uboom X
- JBL Partybox Encore 2 vs JBL Partybox Encore Essential
- JBL Partybox Encore 2 vs Yeahbox Sonic Boom Ultra
- See all 76 comparisons
JBL Xtreme 4: $309.95 Amazon B&H Photo Video eBay
Newer model: the JBL Xtreme 5, rated 4.6/5.
Pros: A rugged 2.1kg portable with IP67 protection, a replaceable battery, USB-C power-bank output, Auracast, stereo pairing and a useful 5-band app EQ. Independent reviews find the midrange detailed and the sound clear, punchy and refined for outdoor use; it also reaches a strong 106dB maximum level and has excellent real-world battery life.
Cons: It cannot produce the deep rumble of a larger speaker, and bass compression increases near maximum volume. The front-facing layout has only modest off-axis consistency, Bluetooth latency is high for video, and the default balance benefits from EQ adjustment. There is no aux input, so wired sources are not supported. Out of the box it leans bass-boosted, with a dip between the upper bass and midrange that EQ cannot fix, and it pushes the upper mids and treble at high volume. It is also expensive.
Full JBL Xtreme 4 review and specifications →
| Amplifier Power | 100W |
|---|---|
| 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 |
| Digital Aux Input | No |
| 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 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Removable Battery | Yes |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 4.6 lbs (2.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- JOY‘s 🎧3D🔈Audio-Show: JBL Charge 6, Xtreme 4 & Earfun UBoom X - taking sound to the top More from Oluv’Sone →
- 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! More from alanrossreviews →
- Oluv Patreon: SoundCore Boom 3i - first impressions & EQs
- Mateusz Cholewa: TRIBIT StormBox LAVA Deep BASS 🆚 JBL XTREME 4 More from Mateusz Cholewa →
- 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? 😂 More from Dominik Reviews →
- M1MTechChannel: Welche JBL Partybox ist die BESTE ? Alle Partyboxen im Vergleich | 2026 More from M1MTechChannel →
- Mateusz Cholewa: BOGASING S8 Pro Max 100W vs JBL Xtreme 4 Audio Test
- Mateusz Cholewa: LOEWE We HEAR Pro Super Stereo vs JBL Xtreme 4
- Head-to-Head Comparisons