Short answer: the Sony ULT Field 5 for features and battery, the Tribit Stormbox Lava for bass depth. The ULT Field 5 is IP67 rated with a 25-hour battery, a 10-band app EQ, Party Connect for up to 100 speakers and USB-C in/out, but its bass is not as deep as others and its ULT button makes a loud tone when pressed. The Lava has fantastic bass extension, though it is heavy for its size.
The case for the Tribit Stormbox Lava: fantastic bass extension that goes deeper than the Soundcore Boom 2, and firmware 2.0.0 brought a big improvement in neutrality. The catch: it’s quite heavy for its size, has some bass boost way down low, and some peaks in the treble and upper mids.
Buy the Tribit Stormbox Lava. It is rated higher for sound quality than the Sony ULT Field 5 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Tribit Stormbox Lava | Sony ULT Field 5 | |
|---|---|---|
| Price | $100 | $198 |
| Ranked | #3 of 83 in Large Size Portable Bluetooth Speakers | #45 of 83 in Large Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Aux Latency | 20ms | - |
| Bass Extension (-10dB) | 44Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC | SBC, AAC, LDAC |
| Bluetooth Latency | 128ms AAC, 144ms SBC | - |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (10 band) | Yes (App + ULT button) |
| IP Rating | IP67 | IP67 |
| Maximum SPL | 108dB (measured by Alan Ross Reviews) | - |
| Party Mode | No | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A) | Yes (USB-C) |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 5.2 lbs (2.37 kg) | 7.3 lbs (3.3 kg) |
| Bluetooth Version | 5.4 | 5.3 |
| Dimensions | 12.2” x 5.8” x 6” (310 x 147 x 152 mm) | 12.6” x 5.7” x 4.9” (320 x 144 x 125 mm) |
| Drivers | 2x 70mm woofers, 2x 30mm tweeters | 2x 46mm tweeters + 1x 79mm x 107mm woofer |
| Frequency Response | 43Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 80W | 27W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | Yes (detachable shoulder strap) |
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- Minirig 4 with subwoofer vs Tribit Stormbox Lava
- Tribit Stormbox Lava vs Minirig 3 with subwoofer
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
Tribit Stormbox Lava: $100 Amazon AliExpress eBay
Pros: A powerful, IP67-rated portable speaker with a measured 44Hz -10dB bass point, 10-band app EQ, aux input and 24-hour claimed battery life. Independent reviews find that it gets loud with impactful bass, and careful EQ or current firmware can produce relatively clean sound through the mids and highs. Measured bass extension of 44Hz (-10dB).
Cons: XBass can make the low end muddy and obscure vocals, while the deepest notes lose authority and clarity falls at maximum volume. It is heavy for its size, its front-facing design has a narrow soundstage, and one review noted a brief sound interruption while changing volume; use a restrained EQ rather than expecting neutral sound out of the box.
Setup: Try out the Alan Ross EQ’s at this timestamp in his video There’s also a max bass EQ from Oluv and you can turn down the lowest slider for it to be more neutral
Full Tribit Stormbox Lava review and specifications →
| Amplifier Power | 80W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Aux Latency | 20ms |
| Bass Extension (-10dB) | 44Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Latency | 128ms AAC, 144ms SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.2” x 5.8” x 6” (310 x 147 x 152 mm) |
| Drivers | 2x 70mm woofers, 2x 30mm tweeters |
| EQ | Yes (10 band) |
| Frequency Response | 43Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Maximum SPL | 108dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 5.2 lbs (2.37 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- JOY‘s 3D Audio Show: Tribit StormBox Lava vs SoundCore Boom 2 - sound quality demo More from Oluv’Sone →
- Oluv Patreon: An evening with the “best portable speakers”?
- Alan Ross Reviews: Tribit Stormbox Lava Latest Firmware Update Result! v2.0.3 More from alanrossreviews →
- Alan Ross Reviews: From harsh to smooth with these EQ settings - Tribit StormBox Lava
- Alan Ross Reviews: Tribit StormBox Lava Just Got a MASSIVE Update… WOW! 🔥
- Alan Ross Reviews: Some people love the Tribit Stormbox Lava, highly professional review 😁
- Mateusz Cholewa: Tribit Stormbox Blast 🎶 🆚Deep BASS - Tribit Stormbox LAVA More from Mateusz Cholewa →
- Mateusz Cholewa: TRIBIT StormBox LAVA vs EarFun UBOOM X
- Mateusz Cholewa: TRIBIT StormBox LAVA vs Soundcore BOOM 2
- Mateusz Cholewa: TRIBIT StormBox LAVA - Unboxing.📦 Short Test vs Xtreme 4
- Mateusz Cholewa: TRIBIT StormBox LAVA Deep BASS 🆚 JBL XTREME 4
- Oluv Patreon: Tribit Stormbox Lava - quick look
- Mateusz Cholewa: 👌TRIBIT StormBox LAVA Deep Bass 🆚 Bogasing S8 Pro MAX - HiFi?
- Head-to-Head Comparisons
- Tribit Stormbox Lava vs JBL Xtreme 5
- Tribit Stormbox Lava vs Brane X
- Tribit Stormbox Lava vs Minirig 4 with subwoofer
- Tribit Stormbox Lava vs Vifa Helsinki
- Tribit Stormbox Lava vs Minirig 3 with subwoofer
- Tribit Stormbox Lava vs Vifa Oslo
- Tribit Stormbox Lava vs Soundcore Boom 2
- Tribit Stormbox Lava vs Marshall Stockwell II
- See all 75 comparisons
Sony ULT Field 5: $198 Amazon eBay
Older models: the Sony SRS-XB43 (ranked lower, rated 3.5/5) and the Sony SRS-XG300 (ranked lower, rated 3.1/5).
Pros: A tough 3.3kg portable with IP67 protection, LDAC/AAC support, aux input, a 10-band app EQ, Party Connect, USB-C power-bank output and a claimed 25-hour battery. Reviews find it energetic and dynamic with substantial bass, enough volume for a yard, and two ULT modes that let bass-focused listeners choose a deeper or punchier presentation.
Cons: It prioritizes bass and loudness over fidelity: reviews find the upper mids and highs subdued, with limited stereo separation and soundstage depth. Deep bass is less authoritative than the enclosure suggests, and the loud confirmation tone when pressing the ULT button is an unnecessary annoyance. Use the app EQ and audition it before buying for detail-focused music.
Full Sony ULT Field 5 review and specifications →
| Amplifier Power | 27W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.6” x 5.7” x 4.9” (320 x 144 x 125 mm) |
| Drivers | 2x 46mm tweeters + 1x 79mm x 107mm woofer |
| EQ | Yes (App + ULT button) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 7.3 lbs (3.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Danny Pops: Don’t TOUCH that ULT Button! Sony ULT Field 5 Review More from DannyPops →
- Mark Ellis Reviews: Sony just changed summer sound 🤨 | Sony ULT Field 5 & 3 Review
- Dominik Reviews: Sony ULT Field 5 vs JBL Xtreme 4 - Outdoor Sound Test - Sony shines or not? More from Dominik Reviews →
- Joy & Oluv’Sone: Sony ULT Field 5 vs Anker SoundCore Boom 2 - listening test More from Oluv’Sone →
- Mateusz Cholewa: SONY ULT Field 5 vs BOGASING S8 PRO MAX More from Mateusz Cholewa →
- Head-to-Head Comparisons


