Short answer: these are not really competing for the same job. The Partybox Encore 2 ranks #4 of 113 boombox speakers at $330, built as a stationary party unit with included microphones. The Xtreme 5 ranks #2 of 120 large speakers at $399.95, built to actually travel.
The Xtreme 5 is one of the best-reviewed speakers on this site. Our notes call it a fantastic sounding speaker with excellent off-axis dispersion, a big step up from older JBL portables, beating the Soundcore Boom 2 and Tribit Stormbox Blast on bass depth and clarity, and it reaches well below 40Hz. That performance comes with real tradeoffs: a hole in the mid-upper bass that can’t be EQ’d out, weak default EQ presets that mean it needs a custom EQ to sound its best, and a high price for the category.
The Encore 2’s strengths are practical rather than sonic. Our notes credit its move to dome tweeters over cone tweeters for better off-axis performance than the original Encore, plus slightly deeper bass, less rolled-off highs, and two included wireless microphones for karaoke. Its one real sound complaint is a bit of missing upper bass.
Despite being marketed as the bigger boombox format, the Encore 2 is actually the heavier, less travel-friendly speaker. It weighs 14.1 lbs (6.4 kg) against the Xtreme 5’s 6.4 lbs (2.9 kg), runs on AC power rather than the Xtreme 5’s USB-C charging, and its IPX4 rating only covers splashing versus the Xtreme 5’s IP68 rating for full submersion. The Xtreme 5 also nearly doubles the battery life at 28 hours against 15.
Buy the JBL Partybox Encore 2 if you want a stationary karaoke and party setup with included microphones and don’t need it to travel or survive water exposure.
Buy the JBL Xtreme 5 if you want a speaker that actually leaves the house: it is lighter, tougher, longer-lasting on a charge, and rated as the better-sounding speaker overall.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Prices on this page were last checked November 7, 2026 at 7:34 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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Specifications Side By Side
| JBL Partybox Encore 2 | JBL Xtreme 5 | |
|---|---|---|
| Price | $330 | $399.95 |
| Ranked | #4 of 113 in Boombox Size Portable Bluetooth Speakers | #2 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes (JBL PartyBox app) | Yes |
| Aux Input | Yes | No |
| Battery Life | 15 hours (Manufacturer specified) | 28 hours (Manufacturer specified) |
| Built-in Microphone | No | No |
| EQ | Yes (7 band App EQ) | Yes (7 band) |
| IP Rating | IPX4 | IP68 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | 110dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Power Bank | Yes (USB-C) | Yes (USB-C, 5V/3A) |
| Power Input | AC Power cord | USB-C |
| Removable Battery | Yes | Yes |
| Stereo | Yes | Partially (1 woofer) |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Weight | 14.1 lbs (6.4 kg) | 6.4 lbs (2.9 kg) |
| Wireless Microphones | Yes 2 Included | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LC3 |
| Bluetooth Version | 5.4 | 6.0 |
| Amplifier Power | 100W RMS | 1 x 90W RMS Woofer + 2 x 20W RMS Tweeter (AC power mode) 1 x 60W RMS Woofer + 2 x 15W RMS Tweeter (Battery mode) |
| Dimensions | 12.6” x 13.3” x 10.4” (319.5 x 338.6 x 263 mm) | 13.6” x 6.5” x 6.1” (346 x 165 x 155 mm) |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters | 98x145mm woofer, 2x 20mm tweeters + 2x passive radiators |
| Digital Aux Input | No | Yes (USB-C) |
| Lights | Yes | - |
| Strap | No | Yes (detachable shoulder strap) |
| Bass Extension (-10dB) | 42Hz | 43Hz (measured by Alan Ross Reviews) |
| Frequency Response | - | 40Hz - 20kHz (Manufacturer specified) |
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