Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Zealot S89 ranks #19 of 76 boombox speakers by sound quality at $246.99; the Onn Large Party gen 2 ranks #16 of 40 party speakers by sound quality at $129.
What the Zealot S89 does well: A 7.3kg boombox with a claimed 36Hz bass extension, 40-hour battery life, IPX6 protection, USB-C charging, aux, USB and microSD playback, TWS and multi-speaker PartyAdd. Watch for: At high volume, listener reports describe the bass as loose or muddy and the overall balance as less clear than better boombox speakers.
Why pick the Onn Large Party gen 2: A remarkably full-featured, manageable 9.5kg party speaker: wheels and handle, FM radio, aux, USB-A charging, mic and guitar inputs with karaoke echo, and Party Sync. Watch for: The low price shows in the refinement.
Buy the Zealot S89 at $246.99 if you want a boombox speaker. Buy the Onn Large Party gen 2 at $129 if you want a party speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Zealot S89 | Onn Large Party gen 2 | |
|---|---|---|
| Price | $246.99 | $129 |
| Ranked | #19 of 76 in Boombox Size Portable Bluetooth Speakers | #16 of 40 in Party Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 36Hz | - |
| Battery Life | 40 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| EQ | Yes (multiple modes) | No |
| IP Rating | IPX6 | IPX4 |
| Bluetooth Codecs | SBC | SBC |
| MicroSD Playback | Yes | - |
| Party Mode | Yes (PartyAdd up to 100 speakers) | Yes (Party Sync Mode) |
| Power Input | USB-C | AC Power cord |
| Stereo | Yes | Partially |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Weight | 16.1 lbs (7.3 kg) | 20.9 lbs (9.5 kg) |
| Power Bank | Yes (USB-A + USB-C) | Yes (USB-A, 5V/2.1A) |
| USB Playback | Yes | No |
| Built-in Microphone | No | - |
| Amplifier Power | 250W | 160W RMS (640W peak) |
| Dimensions | 21.2” x 10.4” x 9.4” (538 x 265 x 240 mm) | 22.5”H x 11.6”W x 11.8”D (571 x 295 x 300 mm) |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters | Dual 8” (203mm) woofers + dual tweeters |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.3 | - |
| Strap | No | No |
| FM Tuner | - | Yes |
| Guitar Input | - | Yes |
| Microphone Input | - | Yes (Karaoke mode with echo effect) |
| Lights | - | Yes |
| Wheels | - | Yes |
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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
Zealot S89: $246.99 Amazon AliExpress eBay
Pros: A 7.3kg boombox with a claimed 36Hz bass extension, 40-hour battery life, IPX6 protection, USB-C charging, aux, USB and microSD playback, TWS and multi-speaker PartyAdd. Listener comparisons find it capable of very high output and substantial bass for outdoor use. A great value for its bass, battery life and maximum volume. Measured bass extension of 36Hz (-10dB).
Cons: At high volume, listener reports describe the bass as loose or muddy and the overall balance as less clear than better boombox speakers. The heavy cabinet and basic finish also make it less polished for daily portability, while its multiple EQ modes cannot substitute for a genuinely neutral tuning.
Full Zealot S89 review and specifications →
| Amplifier Power | 250W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 36Hz |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 21.2” x 10.4” x 9.4” (538 x 265 x 240 mm) |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters |
| EQ | Yes (multiple modes) |
| IP Rating | IPX6 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes (USB-A + USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 16.1 lbs (7.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Zealot S89 vs Yeahbox Boom Max3 - indoor listening test More from Oluv’Sone →
- Oluv Patreon: Zealot S89 vs Yeahbox Sonic Boom Max3 - outdoor test
- Dominik Reviews: Zealot S89 vs JBL Boombox 4 - JBL Alternative? Sound Test More from Dominik Reviews →
- Jagist reviews: Jbl Boombox 4 Vs Zealot S89!!! More from Jagistreviews →
- Techder Audios: ZEALOT S89 VS ZEALOT ZE01 EXTREME POWERFULL VS COMPACTER BASS PERFORMANCE! More from techderaudios →
- Head-to-Head Comparisons
Onn Large Party gen 2: $129 Walmart eBay
Older model: the Onn Large Party gen 1 (rated 2.7/5).
Pros: A remarkably full-featured, manageable 9.5kg party speaker: wheels and handle, FM radio, aux, USB-A charging, mic and guitar inputs with karaoke echo, and Party Sync. Independent testing confirms bass with real impact and enough output for a large room; it is a clear improvement over the Gen 1 for low-end weight.
Cons: The low price shows in the refinement. Consumer Reports found boomy bass, hazy/grainy mids, a prominent smeared treble and a narrow, two-dimensional soundfield; it also notes distortion or other audio issues. There is no app or EQ to tame the tuning, and IPX4 only covers splashes rather than rain or immersion.
Full Onn Large Party gen 2 review and specifications →
| Amplifier Power | 160W RMS (640W peak) |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Digital Aux Input | No |
| Dimensions | 22.5”H x 11.6”W x 11.8”D (571 x 295 x 300 mm) |
| Drivers | Dual 8” (203mm) woofers + dual tweeters |
| EQ | No |
| FM Tuner | Yes |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Party Sync Mode) |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord |
| Stereo | Partially |
| Strap | No |
| TWS | No |
| USB Playback | No |
| Weight | 20.9 lbs (9.5 kg) |
| Wheels | Yes |
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker Gen. 2 & 1 🔉 🔉 How To Do TWS & TWS Sound Demo. Bluetooth Speakers in Garage More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: ONN XL Party Speaker vs.Two Large Gen. 2 Party Speakers. ONN With The Showdown🔌 Plugged In
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker 2 🎶 (Gen 2.0) First Look and Light Demo
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker Gen 2 vs JBL Partybox 110 ☀️ Outdoors Pole Mounted 🤯 Bass Boost On
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker Gen 2 vs JBL Partybox Encore 🛻 Tailgater Special 🔋 Battery Powered
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker Gen. 2 (Bass Boost On) vs JBL Partybox 110 (Bass Boost 1)🩻Battery Powered🔋
- Williston Audio Labs: This Walmart Bluetooth Speaker is INCREDIBLE More from Williston Audio Labs →
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