Short answer: the Sony ULT Field 5. It ranks #44 of 82 large speakers by sound quality, rated 3.5/5, at $198. The Doss Extreme Boom ranks #80, rated 2.1/5, at $79.99, $118.01 cheaper, not enough of a saving to outweigh the sound-quality gap.
What the Sony ULT Field 5 does well: 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. The catch: It prioritizes bass and loudness over fidelity: reviews find the upper mids and highs subdued, with limited stereo separation and soundstage depth.
The case for the Doss Extreme Boom: A durable 2.52kg outdoor speaker with claimed 60W output, IPX7 protection, USB-C charging, aux and microSD playback, speakerphone capability, a power bank and TWS pairing. The catch: The measured 65Hz -10dB bass point means it lacks true low bass despite its boomy voicing.
Buy the Sony ULT Field 5. It is rated higher for sound quality, and the $118.01 you would save on the Doss Extreme Boom does not close the gap.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Sony ULT Field 5 | Doss Extreme Boom | |
|---|---|---|
| Price | $198 | $79.99 |
| Ranked | #44 of 82 in Large Size Portable Bluetooth Speakers | #80 of 82 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Battery Life | 25 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| Bluetooth Version | 5.3 | 5.3 |
| Built-in Microphone | Yes | Yes |
| Dimensions | 12.6” x 5.7” x 4.9” (320 x 144 x 125 mm) | 12.7” x 4.7” x 7.2” (323 x 120 x 184 mm) |
| Drivers | 2x 46mm tweeters + 1x 79mm x 107mm woofer | 60W: Dual drivers + passive radiator |
| EQ | Yes (App + ULT button) | No |
| IP Rating | IP67 | IPX7 |
| Party Mode | Yes (Party Connect up to 100 speakers) | No |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 7.3 lbs (3.3 kg) | 5.6 lbs (2.52 kg) |
| Amplifier Power | 27W | 60W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | - |
| Bass Extension (-10dB) | - | 65Hz |
| MicroSD Playback | - | 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
Sony ULT Field 5: $198 Amazon eBay
Older models: the Sony SRS-XB43 (rated 3.5/5) and the Sony SRS-XG300 (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
Doss Extreme Boom: $79.99 Amazon eBay
Pros: A durable 2.52kg outdoor speaker with claimed 60W output, IPX7 protection, USB-C charging, aux and microSD playback, speakerphone capability, a power bank and TWS pairing. It offers long claimed battery life and can play loudly enough for a casual party, with a bass-heavy sound that carries outdoors. Measured bass extension of 65Hz (-10dB).
Cons: The measured 65Hz -10dB bass point means it lacks true low bass despite its boomy voicing. Reviews describe fuzzy mids, mushy bass when pushed and rolled-off treble, while there is no app or EQ to restore balance. It is best for loud background music, not clear or refined listening.
Full Doss Extreme Boom review and specifications →
| Amplifier Power | 60W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 65Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.7” x 4.7” x 7.2” (323 x 120 x 184 mm) |
| Drivers | 60W: Dual drivers + passive radiator |
| EQ | No |
| IP Rating | IPX7 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 5.6 lbs (2.52 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
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