Why is HE-R9 better than RS 120-W?
- Highest frequency35,000 Hz vs 19,500 Hz+79%
- Lowest frequency15 Hz vs 22 Hz+47%
Why is RS 120-W better than HE-R9?
- Weight460 g vs 230 g2×
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | On-ear |
| Ear cup design | — | Open-back |
| Driver type | — | Dynamic |
| Lowest frequency | 15 Hz | 22 Hz |
| Highest frequency | 35,000 Hz | 19,500 Hz |
| Impedance | 32 Ω | 24 Ω |
| Sensitivity | 100 dB | 106 dB |
| Noise control | ||
| Active noise cancelling | No | No |
| Battery & charging | ||
| Battery life | — | 20 h |
| Connectivity | ||
| Wireless | No | No |
| 3.5 mm jack / AUX | Yes | Yes |
| Design & build | ||
| Weight | 460 g | 230 g |
| Colours | Brown, Black, Red | Black |








