vs
3.8Noise control & calls7.8
Why is HD 660S2 better than WH-1000XM6?
- Driver size38 mm vs 30 mm+27%
- Highest frequency41,500 Hz vs 40,000 Hz+4%
Why is WH-1000XM6 better than HD 660S2?
- Active noise cancellingNo · HD 660S2: Yes
- Lowest frequency8 Hz vs 4 Hz2×
- Weight260 g vs 254 g+2%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | On-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Dynamic |
| Driver size | 38 mm | 30 mm |
| Lowest frequency | 8 Hz | 4 Hz |
| Highest frequency | 41,500 Hz | 40,000 Hz |
| Impedance | 300 Ω | 48 Ω |
| Sensitivity | 104 dB | 103 dB |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Transparency / ambient mode | — | Yes |
| Battery & charging | ||
| Battery life | — | 40 h |
| Battery life with ANC | — | 30 h |
| Charging time | — | 3.5 h |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 5.3 |
| Bluetooth codecs | — | LDAC, LC3, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | Yes |
| aptX | — | No |
| LDAC | — | Yes |
| Multipoint (two devices) | — | Yes |
| LE Audio | — | Yes |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | — | Yes |
| Design & build | ||
| Weight | 260 g | 254 g |
| Foldable | — | Yes |
| Colours | Black | — |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
