Short answer: the Tribit Stormbox Blast 2 reaches deeper, while the Sony ULT Field 7 is the safer choice for listeners who want less aggressively bass-heavy sound. Tribit is 31 of 113; Sony is 61 of 113.
The Blast 2 delivers deep bass, but its boosted lower and upper bass, plus an elevated region around 6kHz, make it muddy. Its Xbass mode intensifies that problem, so more bass does not necessarily mean better balance.
The ULT Field 7 improves upon Sony’s XG500 and avoids the Blast 2’s particularly muddy tuning. It still lacks the deepest bass in its class and has a peak around 8kHz, so neither model is neutral by default.
Buy the Tribit Stormbox Blast 2 if maximum deep-bass impact matters more than a clean tonal balance.
Buy the Sony ULT Field 7 if you prefer a less bass-cluttered large portable speaker and can accept its treble peak.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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Specifications Side By Side
| Tribit Stormbox Blast 2 | Sony ULT Field 7 | |
|---|---|---|
| Price | $279.99 | $448.00 |
| Ranked | #31 of 113 in Boombox Size Portable Bluetooth Speakers | #61 of 113 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 40Hz | ~52Hz |
| Battery Life | 30 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| IP Rating | IP67 | IP67 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | - |
| Microphone Input | Yes (2x 6.35mm) | Yes (Karaoke mode with echo effect) |
| Power Bank | Yes (USB-A) | Yes (USB-A, 5V/1.5A) |
| Power Input | AC Power Cable or 10w USB-C | AC Power cord |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 19.2 lbs (8.7 kg) | 13.9 lbs (6.3 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC | SBC, AAC, LDAC |
| Built-in Microphone | No | Yes |
| App | Yes (Tribit app) | No |
| EQ | Yes (10 band) | Yes (App + ULT button) |
| Party Mode | No | Yes (Party Connect up to 100 speakers) |
| USB Playback | No | Yes |
| FM Tuner | No | - |
| MicroSD Playback | No | - |
| Amplifier Power | 200W AC / 180W battery | 100W |
| Dimensions | 18.7” x 7.6” x 10.2” (476 x 193 x 259 mm) | 20.2” x 8.8” x 8.7” (512 x 224 x 222 mm) |
| Drivers | 1x ~180x110mm rectangular subwoofer + 2x ~80mm mid drivers + 2x ~25mm tweeters | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.4 | 5.2 |
| Strap | No | No |
| Guitar Input | - | Yes |
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