Short answer: the JBL Partybox Encore Essential 2. It ranks #6 of 98 boombox speakers by sound quality, rated 4.3/5, at $219. The Zealot S78 ranks #97, rated 2.0/5, at $159.68, $59.32 cheaper, not enough of a saving to outweigh the sound-quality gap.
The JBL Partybox Encore Essential 2 is the better-sounding option. A compact 13.7 lbs (6.2 kg) party speaker with 100W output, 110dB maximum level, a 15-hour claimed battery, app-based 7-band EQ, dynamic lighting, USB playback, guitar and mic inputs, and Auracast linking. It links with other speakers (Auracast), which the Zealot S78 cannot. The tradeoff: It is front-facing, so the sound changes noticeably to the sides and behind it, and bass compression reduces kick-drum impact at maximum volume.
The Zealot S78 is the longer-running, lighter option. A robust 9.7 lbs (4.4 kg) party speaker with claimed 120W RMS output, IP67 protection, USB-C charging, a power-bank function, aux, USB and microSD playback, TWS pairing and multiple EQ modes. It is rated for 40 hours of battery against 15 for the JBL Partybox Encore Essential 2. At 9.7 lbs (4.4 kg) it weighs noticeably less than the JBL Partybox Encore Essential 2 at 13.7 lbs (6.2 kg). It is rated IP67 against IPX4 for the JBL Partybox Encore Essential 2. The tradeoff: At high volume, reviews report distortion and fluctuating level, so its headline power is more useful below its maximum setting.
Buy the JBL Partybox Encore Essential 2. It is rated higher for sound quality, and the $59.32 you would save on the Zealot S78 does not close the gap.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Partybox Encore Essential 2 | Zealot S78 | |
|---|---|---|
| Price | $219.00 | $159.68 |
| Ranked | #6 of 98 in Boombox Size Portable Bluetooth Speakers | #97 of 98 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (JBL PartyBox app) | No |
| Aux Input | Yes | Yes |
| Battery Life | 15 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| Built-in Microphone | No | No |
| EQ | Yes (7 band App EQ) | Yes (multiple modes) |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | IP67 |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| Power Input | AC Power cord | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 13.7 lbs (6.2 kg) | 9.7 lbs (4.4 kg) |
| Wireless Microphones | No | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 5.4 | 5.3 |
| Amplifier Power | 100W RMS | 120W RMS / 150W peak |
| Dimensions | 12.6” x 13.5” x 10.3” (319.5 x 342 x 260.4 mm) | 16.1” x 6.6” x 7.3” (410 x 167 x 185 mm) |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters | 2x ~120mm (4.72”) woofers + 2x ~42mm tweeters + 2x passive radiators |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | - |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | No | Yes (detachable shoulder strap) |
| Bass Extension (-10dB) | 42Hz | - |
| MicroSD Playback | - | Yes |
Related Speaker Comparisons
More top alternatives to JBL Partybox Encore Essential 2:
- EarFun Uboom X vs JBL Partybox Encore Essential 2
- JBL Partybox Encore Essential 2 vs Tribit Stormbox Blast
- Harman Kardon Go + Play 3 vs JBL Partybox Encore Essential 2
- JBL Partybox Encore 2 vs JBL Partybox Encore Essential 2
- JBL PartyBox On-The-Go 2 Plus vs JBL Partybox Encore Essential 2
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.
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The Two Speakers In Full
JBL Partybox Encore Essential 2: $219.00 Amazon $219.00 B&H Photo Video eBay
Older model: the JBL Partybox Encore Essential (ranked lower, rated 4.2/5). See every JBL PartyBox Encore generation.
Same family: the JBL Partybox Encore 2 (smaller model, ranked higher, rated 4.4/5).
Pros: A compact 6.2kg party speaker with 100W output, 110dB maximum level, a 15-hour claimed battery, app-based 7-band EQ, dynamic lighting, USB playback, guitar and mic inputs, and Auracast linking. Independent testing finds a balanced midrange, genuinely punchy low bass and enough output for a backyard gathering; its dome tweeters also improve the earlier Encore’s high-frequency behavior. Measured bass extension of 42Hz (-10dB).
Cons: It is front-facing, so the sound changes noticeably to the sides and behind it, and bass compression reduces kick-drum impact at maximum volume. Bluetooth latency can cause lip-sync issues, its IPX4 rating only covers splashes, and it omits the wireless microphones bundled with the non-Essential JBL Partybox Encore 2.
Full JBL Partybox Encore Essential 2 review and specifications →
| Released | Feb 2025 (1 year ago) |
|---|---|
| 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 13.5” x 10.3” (319.5 x 342 x 260.4 mm) |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters |
| EQ | Yes (7 band App EQ) |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C) |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 13.7 lbs (6.2 kg) |
| Wireless Microphones | No |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL giving it to us large! The good, The bad, The diabolical! More from alanrossreviews →
- Jagist reviews: Jbl Encore Essential 2 Vs W-king X20s!!! More from Jagistreviews →
- Jagist reviews: Hopestar A90 Vs Jbl Encore Essential 2!!! Deep Bass Vs Powerhouse Bass!!!
- KULAS TECH SHOW: JBL Partybox Encore Essential 2 - Unbox, Sound test🔥💥 More from KULASTECHSHOW20 →
- MARIO GOMEZ MG: Tronsmart Halo 210 vs. JBL Encore Essential 2 SOUND TESTS
- Head-to-Head Comparisons
- JBL Partybox Encore Essential 2 vs JBL Partybox Encore
- JBL Partybox Encore Essential 2 vs JBL PartyBox On-The-Go 2 Plus
- JBL Partybox Encore Essential 2 vs JBL Partybox Encore Essential
- JBL Partybox Encore Essential 2 vs JBL Partybox Encore 2
- JBL Partybox Encore Essential 2 vs Harman Kardon Go + Play 3
- JBL Partybox Encore Essential 2 vs Aiwa Exos-9
- JBL Partybox Encore Essential 2 vs Tribit Stormbox Blast
- JBL Partybox Encore Essential 2 vs EarFun Uboom X
- See all 98 comparisons
Zealot S78: $159.68 Amazon $159.68 AliExpress $91.38 eBay
Pros: A robust 4.4kg party speaker with claimed 120W RMS output, IP67 protection, USB-C charging, a power-bank function, aux, USB and microSD playback, TWS pairing and multiple EQ modes. Reviews find it very loud with useful bass and long claimed battery life, making it a credible choice for outdoor gatherings.
Cons: At high volume, reviews report distortion and fluctuating level, so its headline power is more useful below its maximum setting. It has no app-based EQ, and the bass and midrange refinement do not match better-established boombox speakers; assess its sound in person if tonal accuracy matters.
Full Zealot S78 review and specifications →
| Released | May 2023 (3 years ago) |
|---|---|
| Amplifier Power | 120W RMS / 150W peak |
| App | No |
| Aux Input | Yes |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 16.1” x 6.6” x 7.3” (410 x 167 x 185 mm) |
| Drivers | 2x ~120mm (4.72”) woofers + 2x ~42mm tweeters + 2x passive radiators |
| EQ | Yes (multiple modes) |
| IP Rating | IP67 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 9.7 lbs (4.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: DBSOARS F29 Max vs Zealot S78 🛜 (5B) Budget Bluetooth Boombox Basement Battle 🔊 Bass Modes Enabled More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: W-King X20 vs Zealot S78 Bluetooth Boombox Battle Outdoor Tailgater Special 🚗 Let the Whoopin’ Begin
- Head-to-Head Comparisons