Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The JBL Partybox Stage 320 ranks #3 of 53 party speakers by sound quality at $569.95; the Zealot S89 ranks #19 of 113 boombox speakers by sound quality at $193.58.
The case for the JBL Partybox Stage 320: An excellent sounding party speaker, with deep bass that holds up at high volume, wheels, a removable battery and mic inputs. The tradeoff: Slightly sibilant in the treble at full blast.
The Zealot S89 is the longer-running, lighter option. A great value boombox with deep bass, very high volume, a 40 hour battery and water resistance for outdoor parties. It is rated for 40 hours of battery against 18 for the JBL Partybox Stage 320. At 16.1 lbs (7.3 kg) it weighs much less than the JBL Partybox Stage 320 at 36.4 lbs (16.5 kg). It is rated IPX6 against IPX4 for the JBL Partybox Stage 320. The tradeoff: At high volume, listener reports describe the bass as loose or muddy and the overall balance as less clear than better boombox speakers.
Buy the JBL Partybox Stage 320 at $569.95 for a party speaker, or the Zealot S89 at $193.58 for a boombox speaker instead.
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 Stage 320 | Zealot S89 | |
|---|---|---|
| Price | $569.95 | $193.58 |
| Ranked | #3 of 53 in Party Size Portable Bluetooth Speakers | #19 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Battery Life | 18 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 5.4 | 5.3 |
| Drivers | 2x 6.5” woofers, 2x 25mm tweeters | 130W subwoofer + 2x 40mm drivers + 2x tweeters |
| EQ | Yes (5 band) | Yes (multiple modes) |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | IPX6 |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Auracast) | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/2.1A) | Yes (USB-A + USB-C) |
| Power Input | AC Power cord | USB-C |
| Removable Battery | Yes | - |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 36.4 lbs (16.5 kg) | 16.1 lbs (7.3 kg) |
| Amplifier Power | 240W | 250W |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Wheels | Yes | - |
| Dimensions | 26.3”H x 13.2”W x 15.2”D (669 x 335 x 385 mm) | 21.2” x 10.4” x 9.4” (538 x 265 x 240 mm) |
| Strap | No | No |
| Bass Extension (-10dB) | - | 36Hz |
| MicroSD Playback | - | Yes |
| Built-in Microphone | - | No |
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