Why is PX7 S2 better than HD 660S2?
- Active noise cancellingYes · HD 660S2: No
- Driver size43 mm vs 38 mm+13%
Why is HD 660S2 better than PX7 S2?
- Weight335 g vs 260 g+29%
- Highest frequency20,000 Hz vs 41,500 Hz2.1×
- Lowest frequency10 Hz vs 8 Hz+25%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Driver size | 43 mm | 38 mm |
| Number of drivers | 1 | — |
| Lowest frequency | 10 Hz | 8 Hz |
| Highest frequency | 20,000 Hz | 41,500 Hz |
| Impedance | 22 Ω | 300 Ω |
| Sensitivity | — | 104 dB |
| Hi-Res Audio | Yes | — |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Battery & charging | ||
| Battery life | 30 h | — |
| Charging time | 7 h | — |
| Connectivity | ||
| Wireless | Yes | No |
| Bluetooth version | 5 | — |
| Bluetooth codecs | aptX HD, aptX, AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | — |
| aptX | Yes | — |
| LDAC | No | — |
| 3.5 mm jack / AUX | Yes | — |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Weight | 335 g | 260 g |
| Colours | — | Black |
