Short answer: the JBL Partybox Encore 2, for cleaner off axis sound. Its move to dome tweeters over cone appears to give better off axis performance, though it is missing a little bit of upper bass. The Harman Kardon Onyx Studio 7 is warm with boosted bass, but it sounds a little sterile.
Buy the JBL Partybox Encore 2. It is rated higher for sound quality, and the $81.10 you would save on the Harman Kardon Onyx Studio 7 does not close the gap.
Battery life favors the JBL Partybox Encore 2: rated for 15 hours against 8 hours for the Harman Kardon Onyx Studio 7.
If water resistance matters to you, the JBL Partybox Encore 2 at IPX4 (splashing) holds up far better than the Harman Kardon Onyx Studio 7 at no water resistance.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Partybox Encore 2 | Harman Kardon Onyx Studio 7 | |
|---|---|---|
| Price | $330 | $248.90 |
| Ranked | #4 of 90 in Boombox Size Portable Bluetooth Speakers | #14 of 90 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (JBL PartyBox app) | No |
| Aux Input | Yes | Yes |
| Battery Life | 15 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Built-in Microphone | No | Yes |
| EQ | Yes (7 band App EQ) | No |
| IP Rating | IPX4 | None |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | 96dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (Auracast) | Yes (Wireless Dual Sound) |
| Power Bank | Yes (USB-C) | No |
| Power Input | AC Power cord | DC Barrel Connector (19V/2.1A) |
| Removable Battery | Yes | - |
| Stereo | Yes | Partially (1 woofer) |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | No |
| 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 |
| Bluetooth Version | 5.4 | 4.2 |
| Amplifier Power | 100W RMS | 50W RMS |
| Dimensions | 12.6” x 13.3” x 10.4” (319.5 x 338.6 x 263 mm) | 11.3” x 11.3” (285.8 x 285.8 mm) (round design) |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters | 120mm woofer + 2x 25mm tweeters |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | No | No |
| Bass Extension (-10dB) | 42Hz | 37Hz |
| Aux Latency | - | 0ms |
| Bluetooth Latency | - | 266ms |
Related Speaker Comparisons
How JBL Partybox Encore 2 compares with other leading options:
- 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 October 2, 2026 at 10:18 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 (ranked lower, 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. Measured bass extension of 42Hz (-10dB).
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 |
| Bass Extension (-10dB) | 42Hz |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth | Yes |
| 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
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- See all 92 comparisons
Harman Kardon Onyx Studio 7: $248.90 Amazon eBay
Newer model: the Harman Kardon Onyx Studio 9, ranked lower, rated 4.1/5.
Pros: The addition of dual tweeters gives the Studio 7 a wider, more spacious presentation than older Onyx models. It delivers strong, deep bass, useful large-room volume and can pair with a second Studio 7 for stereo. Measured bass extension of 37Hz (-10dB).
Cons: Consumer Reports finds the bass prominent and boomy, mids hazy, treble slightly smeared and the soundstage congested. Battery life remains only about eight hours, it has no water rating or advanced codecs, and it is not an especially loud outdoor speaker.
Full Harman Kardon Onyx Studio 7 review and specifications →
| Amplifier Power | 50W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Aux Latency | 0ms |
| Bass Extension (-10dB) | 37Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 266ms |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.3” x 11.3” (285.8 x 285.8 mm) (round design) |
| Drivers | 120mm woofer + 2x 25mm tweeters |
| EQ | No |
| IP Rating | None |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Wireless Dual Sound) |
| Power Bank | No |
| Power Input | DC Barrel Connector (19V/2.1A) |
| Stereo | Partially (1 woofer) |
| Strap | No |
| TWS | No |
| USB Playback | No |
| Weight | 6.4 lbs (2.9 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL Boombox 2 vs Onyx Studio 7 big bass battle 💋 More from alanrossreviews →
- Alan Ross Reviews: Onyx Studio 7 vs Onyx Studio 6 - massive deep bass battle 😁
- Geri’s Collection: Harman Kardon Onyx 7 vs Onyx 4
- KULAS TECH SHOW: Harman / Kardon Onyx Studio 5 vs Onyx Studio 7 - Close battle🔥🔥 More from KULASTECHSHOW20 →
- Alan Ross Reviews: Ultimate HK Onyx Studio speaker review and comparison! 8 speakers!
- Head-to-Head Comparisons
- Harman Kardon Onyx Studio 7 vs Harman Kardon Onyx Studio 6
- Harman Kardon Onyx Studio 7 vs Harman Kardon Onyx Studio 9
- Harman Kardon Onyx Studio 7 vs Harman Kardon Onyx Studio 8
- Harman Kardon Onyx Studio 7 vs Zealot ZE51
- Harman Kardon Onyx Studio 7 vs Zealot ZE41
- Harman Kardon Onyx Studio 7 vs Yeahbox Sonic Boom Ultra
- Harman Kardon Onyx Studio 7 vs Zealot ZE21
- Harman Kardon Onyx Studio 7 vs Zealot S89
- See all 59 comparisons


