Why is H9 better than HD 620S?
- Active noise cancellingYes · HD 620S: No
Why is HD 620S better than H9?
- Lowest frequency20 Hz vs 6 Hz3.3×
- Highest frequency20,000 Hz vs 30,000 Hz+50%
- Driver size40 mm vs 42 mm+5%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Driver type | Dynamic | — |
| Driver size | 40 mm | 42 mm |
| Lowest frequency | 20 Hz | 6 Hz |
| Highest frequency | 20,000 Hz | 30,000 Hz |
| Impedance | — | 150 Ω |
| Sensitivity | — | 110 dB |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Battery & charging | ||
| Battery life | 75 h | — |
| Battery life with ANC | 45 h | — |
| Connectivity | ||
| Wireless | Yes | No |
| Bluetooth version | 5.4 | — |
| Bluetooth codecs | AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| USB-C | Yes | — |
| 3.5 mm jack / AUX | Yes | Yes |
| Design & build | ||
| Colours | — | Black |
