These are not really the same size class, and that is the honest framing here. The JBL Partybox Stage 320 ranks #3 of 53 party speakers by sound quality at $569.95; the Tribit Stormbox Blast 2 ranks #31 of 113 boombox speakers by sound quality at $279.99.
Different sizes. The Stage 320 is a 36.4 lbs (16.5 kg) party speaker. The Stormbox Blast 2 is an 19.2 lbs (8.7 kg) boombox. Each is rated within its own class.
The Blast 2 measured about 110dB with bass to about 40Hz, is IP67, and claims 30 hours. It sounds muddy with boosted lower and upper bass, and XBass makes it worse.
The Stage 320 keeps more bass at high volume than the PartyBox 310, and has wheels, a removable battery and mic and guitar inputs.
Buy the JBL Partybox Stage 320 at $569.95 for a party speaker, or the Tribit Stormbox Blast 2 at $279.99 for a boombox speaker instead.
There is a real battery-life gap here: the Tribit Stormbox Blast 2 is rated for 30 hours, the JBL Partybox Stage 320 only 18 hours.
If water resistance matters to you, the Tribit Stormbox Blast 2 at IP67 (brief submersion) holds up far better than the JBL Partybox Stage 320 at IPX4 (splashing).
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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Specifications Side By Side
| JBL Partybox Stage 320 | Tribit Stormbox Blast 2 | |
|---|---|---|
| Price | $569.95 | $279.99 |
| Ranked | #3 of 53 in Party Size Portable Bluetooth Speakers | #31 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | Yes (Tribit app) |
| Aux Input | Yes | Yes |
| Battery Life | 18 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC |
| Bluetooth Version | 5.4 | 5.4 |
| Drivers | 2x 6.5” woofers, 2x 25mm tweeters | 1x ~180x110mm rectangular subwoofer + 2x ~80mm mid drivers + 2x ~25mm tweeters |
| EQ | Yes (5 band) | Yes (10 band) |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | IP67 |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (2x 6.35mm) |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-A, 5V/2.1A) | Yes (USB-A) |
| Power Input | AC Power cord | AC Power Cable or 10w USB-C |
| Removable Battery | Yes | - |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | No |
| Weight | 36.4 lbs (16.5 kg) | 19.2 lbs (8.7 kg) |
| Amplifier Power | 240W | 200W AC / 180W battery |
| 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) | 18.7” x 7.6” x 10.2” (476 x 193 x 259 mm) |
| Strap | No | No |
| Bass Extension (-10dB) | - | 40Hz |
| Maximum SPL | - | 110dB (measured by Alan Ross Reviews) |
| Built-in Microphone | - | No |
| FM Tuner | - | No |
| MicroSD Playback | - | No |
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