Dimensions
Size comparison
R990BTRETRO BOX FIO-RETROBOX
| R990BT | RETRO BOX FIO-RETROBOX | Difference | |
|---|---|---|---|
| Height | 226 mm | 76 mm | +150 mm |
| Width | 140 mm | 98.8 mm | +41.2 mm |
| Depth | 197 mm | 152.8 mm | +44.2 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is R990BT better than RETRO BOX FIO-RETROBOX?
- Output power24 W vs 11 W2.3×
- Lowest frequency60 Hz vs 65 Hz+8%
Why is RETRO BOX FIO-RETROBOX better than R990BT?
- Bluetooth version5.4 vs 6+11%
- Highest frequency18,000 Hz vs 20,000 Hz+11%
Specifications
Side by side
| Sound | ||
| Output power | 24 W | 11 W |
| Speaker channels | Stereo | — |
| Lowest frequency | 60 Hz | 65 Hz |
| Highest frequency | 18,000 Hz | 20,000 Hz |
| Hi-Res Audio | — | Yes |
| Stereo | Yes | — |
| Battery & charging | ||
| Battery life | — | 10.5 h |
| Mains powered | Yes | — |
| Battery powered (portable) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 6 |
| Bluetooth codecs | SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| 3.5 mm jack / AUX | Yes | — |
| Design & build | ||
| Weight | 3,440 g | — |
| Width | 140 mm | 99 mm |
| Height | 226 mm | 76 mm |
| Depth | 197 mm | 153 mm |
| Features | ||
| Hands-free calls | — | Yes |








