2.9Sound6.8
Why is QS20 better than Kilburn III?
- Weight327 g vs 2,800 g8.6×
- Bluetooth version6 vs 5.3+13%
Why is Kilburn III better than QS20?
- Output power6 W vs 50 W8.3×
- Driver size43 mm vs 101.6 mm2.4×
- Lowest frequency87 Hz vs 45 Hz+93%
Specifications
Side by side
| Sound | ||
| Driver type | — | Dynamic |
| Driver size | 43 mm | 101.6 mm |
| Output power | 6 W | 50 W |
| Speaker channels | — | 2.0 |
| Channel count | — | 2 |
| Lowest frequency | 87 Hz | 45 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Spatial / 3D audio | — | Yes |
| Adjustable equaliser | — | Yes |
| Stereo | — | Yes |
| Battery & charging | ||
| Battery life | — | 50 h |
| Charging time | — | 3 h |
| Quick charge (claimed) | — | 20 min → 8 h |
| Fast charging support | — | Yes |
| Power bank function | — | Yes |
| Mains powered | — | No |
| Battery powered (portable) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 6 | 5.3 |
| Bluetooth codecs | SBC | LC3, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| Multipoint (two devices) | — | Yes |
| LE Audio | — | Yes |
| Auracast | — | Yes |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | 327 g | 2,800 g |
| Width | — | 273 mm |
| Height | — | 150 mm |
| Depth | — | 169 mm |
| Protection rating | — | IP54 |
| Water resistance (IPx) | — | IPx4 |
| Dust protection (IP) | — | 5 |
