vs
5.7Sound4.4
4.2Battery9.5
Why is Retro Box better than Session 540?
- Output power11 W vs 10 W+6%
- Bluetooth version6 vs 5.3+13%
Why is Session 540 better than Retro Box?
- Battery life10 h vs 40 h4×
- Weight683 g vs 320 g2.1×
- Lowest frequency65 Hz vs 20 Hz3.2×
Specifications
Side by side
| Sound | ||
| Driver size | — | 49.5 mm |
| Output power | 11 W | 10 W |
| Lowest frequency | 65 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Adjustable equaliser | — | Yes |
| Battery & charging | ||
| Battery life | 10 h | 40 h |
| Charging time | 2.5 h | — |
| Quick charge (claimed) | — | 10 min → 3.5 h |
| Fast charging support | — | Yes |
| Mains powered | No | — |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 6 | 5.3 |
| Bluetooth codecs | LDAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | — |
| aptX | No | — |
| LDAC | Yes | — |
| Multipoint (two devices) | — | Yes |
| LE Audio | — | Yes |
| Auracast | — | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | 683 g | 320 g |
| Width | 153 mm | — |
| Height | 76 mm | — |
| Depth | 99 mm | — |
| Protection rating | — | IP67 |
| Water resistance (IPx) | — | IPx7 |
| Dust protection (IP) | — | 6 |
| Colours | — | Leopard, Plasma, Primer, True Black, Cement |
| Features | ||
| Party / stereo pairing | — | Yes |
