3.9Sound5.5
Dimensions
Size comparison
R990BTULT FIELD 1
| R990BT | ULT FIELD 1 | Difference | |
|---|---|---|---|
| Height | 226 mm | 77 mm | +149 mm |
| Width | 140 mm | 206 mm | −66 mm |
| Depth | 197 mm | 76 mm | +121 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is R990BT better than ULT FIELD 1?
- Output power24 W vs 20 W+20%
Why is ULT FIELD 1 better than R990BT?
- Lowest frequency60 Hz vs 20 Hz3×
- Highest frequency18,000 Hz vs 20,000 Hz+11%
Specifications
Side by side
| Sound | ||
| Output power | 24 W | 20 W |
| Speaker channels | Stereo | — |
| Lowest frequency | 60 Hz | 20 Hz |
| Highest frequency | 18,000 Hz | 20,000 Hz |
| Adjustable equaliser | — | Yes |
| Stereo | Yes | — |
| Battery & charging | ||
| Battery life | — | 12 h |
| Mains powered | Yes | No |
| Battery powered (portable) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.3 |
| Bluetooth codecs | SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | — |
| Design & build | ||
| Weight | 3,440 g | — |
| Width | 140 mm | 206 mm |
| Height | 226 mm | 77 mm |
| Depth | 197 mm | 76 mm |
| Protection rating | — | IP67 |
| Water resistance (IPx) | — | IPx7 |
| Dust protection (IP) | — | 6 |
| Features | ||
| Hands-free calls | — | Yes |
| Party / stereo pairing | — | Yes |









