Dimensions
Size comparison
R-40PMRockster Air 2
| R-40PM | Rockster Air 2 | Difference | |
|---|---|---|---|
| Height | 300 mm | 589 mm | −289 mm |
| Width | 145 mm | 323 mm | −178 mm |
| Depth | 256 mm | 344 mm | −88 mm |
| Weight | 8,300 g | 14,150 g | −5,850 g |
Drawn to the same scale from the official dimensions (front and side).
Why is R-40PM better than Rockster Air 2?
- Weight8,300 g vs 14,150 g+70%
Why is Rockster Air 2 better than R-40PM?
- Hi-res codec (LDAC / aptX HD / LHDC)No · R-40PM: Yes
- aptXNo · R-40PM: Yes
- Lowest frequency60 Hz vs 47 Hz+28%
- Highest frequency20,000 Hz vs 22,000 Hz+10%
Specifications
Side by side
| Sound | ||
| Output power | 70 W | — |
| Lowest frequency | 60 Hz | 47 Hz |
| Highest frequency | 20,000 Hz | 22,000 Hz |
| Battery & charging | ||
| Battery life | — | 58 h |
| Battery capacity | — | 7,800 mAh |
| Mains powered | Yes | Yes |
| Battery powered (portable) | No | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | — | 5 |
| Bluetooth codecs | SBC | aptX HD, aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | Yes |
| aptX | No | Yes |
| LDAC | No | No |
| 3.5 mm jack / AUX | Yes | — |
| Optical input | Yes | — |
| Design & build | ||
| Weight | 8,300 g | 14,150 g |
| Width | 145 mm | 323 mm |
| Height | 300 mm | 589 mm |
| Depth | 256 mm | 344 mm |
| Colours | — | Black |
