Why is Hi-X60 better than HD 660S2?
- Lowest frequency5 Hz vs 8 Hz+60%
Why is HD 660S2 better than Hi-X60?
- Weight320 g vs 260 g+23%
- Highest frequency28,000 Hz vs 41,500 Hz+48%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | — |
| Driver size | — | 38 mm |
| Lowest frequency | 5 Hz | 8 Hz |
| Highest frequency | 28,000 Hz | 41,500 Hz |
| Impedance | 25 Ω | 300 Ω |
| Sensitivity | 110 dB | 104 dB |
| Noise control | ||
| Active noise cancelling | No | No |
| Connectivity | ||
| Wireless | No | No |
| 3.5 mm jack / AUX | Yes | — |
| Design & build | ||
| Weight | 320 g | 260 g |
| Foldable | Yes | — |
| Colours | Black | Black |
