Why is RS2X better than HD 660S2?
- Weight240 g vs 260 g+8%
- Driver size44 mm vs 38 mm+16%
Why is HD 660S2 better than RS2X?
- Lowest frequency14 Hz vs 8 Hz+75%
- Highest frequency28,000 Hz vs 41,500 Hz+48%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Open-back | — |
| Driver type | Dynamic | — |
| Driver size | 44 mm | 38 mm |
| Lowest frequency | 14 Hz | 8 Hz |
| Highest frequency | 28,000 Hz | 41,500 Hz |
| Impedance | 38 Ω | 300 Ω |
| Sensitivity | 99 dB | 104 dB |
| Noise control | ||
| Active noise cancelling | No | No |
| Connectivity | ||
| Wireless | No | No |
| Design & build | ||
| Weight | 240 g | 260 g |
| Colours | Black, Brown | Black |
