Short answer: the Sony ULT Field 3 on placement and price. It ranks #71 of 179 medium speakers at $208, a stronger placement than the Emberton II’s #127 of 179 at $151.99. The Sony is IP67 dustproof and water resistant, though it sounds a bit hollow with boosted treble; the Emberton II counters with a 30 hour battery, but has an echo-like coloration and bass that is not as deep as competitors.
Buy the Sony ULT Field 3. It is rated higher for sound quality, and saving $56.01 with the Marshall Emberton II does not make up for the sound-quality gap.
Want more options? Browse the full Portable Bluetooth rankings.
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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Marshall Emberton II | Sony ULT Field 3 | |
|---|---|---|
| Price | $151.99 | $208.00 |
| Ranked | #127 of 179 in Medium Size Portable Bluetooth Speakers | #71 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Bass Extension (-10dB) | 62Hz | - |
| Battery Life | 30 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth Latency | 80ms | - |
| Maximum SPL | 88dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Marshall Stack) | Yes (Party Connect up to 100 speakers) |
| Weight | 1.5 lbs (700 g) | 2.6 lbs (1.2 kg) |
| IP Rating | IP67 | IP67 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.1 | 5.2 |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Dimensions | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) | 10.1” x 4.4” x 3.1” (256 x 113 x 79 mm) |
| Drivers | 2x 2” full-range drivers + 2x passive radiators | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| TWS | No | Yes |
| EQ | Yes (3 presets via app) | Yes (App + ULT button) |
| Built-in Microphone | No | Yes |
| Stereo | Yes | Yes |
| Omnidirectional | Yes | No |
| Power Input | USB-C | USB-C |
| Power Bank | No | Yes (USB-C, 5V/1.5A) |
| Aux Input | No | No |
| Amplifier Power | 20W | 27W |
| Digital Aux Input | No | No |
| Strap | No | Yes (detachable shoulder strap) |
Related Speaker Comparisons
How Sony ULT Field 3 compares with other leading options:
