vs
3.8Noise control & calls6.5
6.2Battery7.2
Why is ATH-M20xBT better than Live 670NC?
- Lowest frequency5 Hz vs 20 Hz4×
- Highest frequency32,000 Hz vs 20,000 Hz+60%
Why is Live 670NC better than ATH-M20xBT?
- Active noise cancellingNo · ATH-M20xBT: Yes
- Battery life60 h vs 65 h+8%
- Bluetooth version5 vs 5.3+6%
- Charging time4 h vs 3 h+33%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | On-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 40 mm | 40 mm |
| Lowest frequency | 5 Hz | 20 Hz |
| Highest frequency | 32,000 Hz | 20,000 Hz |
| Impedance | 36 Ω | 32 Ω |
| Sensitivity | 100 dB | 98 dB |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Microphones | — | 2 |
| Battery & charging | ||
| Battery life | 60 h | 65 h |
| Battery life with ANC | — | 50 h |
| Charging time | 4 h | 3 h |
| Quick charge (claimed) | — | 5 min → 1 h |
| Fast charging support | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5.3 |
| Bluetooth codecs | AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | — | Alexa |
| Design & build | ||
| Weight | 216 g | 219 g |
| Foldable | — | Yes |
| Features | ||
| Hands-free calls | Yes | Yes |
