9.0Sound6.8
Why is ES300 better than Kilburn III?
- Hi-res codec (LDAC / aptX HD / LHDC)Yes · Kilburn III: No
- Highest frequency40,000 Hz vs 20,000 Hz2×
- LDACYes · Kilburn III: No
Why is Kilburn III better than ES300?
- Output power45 W vs 50 W+11%
- Weight3,700 g vs 2,800 g+32%
- Lowest frequency56 Hz vs 45 Hz+24%
Specifications
Side by side
| Sound | ||
| Driver type | — | Dynamic |
| Driver size | — | 101.6 mm |
| Output power | 45 W | 50 W |
| Speaker channels | — | 2.0 |
| Channel count | — | 2 |
| Lowest frequency | 56 Hz | 45 Hz |
| Highest frequency | 40,000 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 | 5.4 | 5.3 |
| Bluetooth codecs | LDAC, AAC, SBC | LC3, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | No |
| aptX | No | No |
| LDAC | Yes | No |
| Multipoint (two devices) | — | Yes |
| LE Audio | — | Yes |
| Auracast | — | Yes |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Wi-Fi | Yes | — |
| AirPlay | Yes | — |
| Companion app | — | Yes |
| Design & build | ||
| Weight | 3,700 g | 2,800 g |
| Width | — | 273 mm |
| Height | — | 150 mm |
| Depth | — | 169 mm |
| Protection rating | — | IP54 |
| Water resistance (IPx) | — | IPx4 |
| Dust protection (IP) | — | 5 |









