Why is K1 better than M-271 DB?
- Driver size40 mm vs 32 mm+25%
Why is M-271 DB better than K1?
M-271 DB has no measurable advantages in this pair.
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 | 32 mm |
| Number of drivers | 1 | — |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Impedance | 32 Ω | — |
| Sensitivity | 94 dB | 107 dB |
| Noise control | ||
| Active noise cancelling | No | No |
| Battery & charging | ||
| Battery life | — | 65 h |
| Charging time | — | 5 h |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 5.4 |
| Bluetooth codecs | — | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| 3.5 mm jack / AUX | Yes | — |
| Design & build | ||
| Weight | — | 109 g |
| Features | ||
| Hands-free calls | Yes | Yes |
