Why is H9 better than ALCHEM-E?
- Battery life75 h vs 45 h+67%
Why is ALCHEM-E better than H9?
- Lowest frequency20 Hz vs 8 Hz2.5×
- Highest frequency20,000 Hz vs 40,000 Hz2×
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | — | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 40 mm | 40 mm |
| Lowest frequency | 20 Hz | 8 Hz |
| Highest frequency | 20,000 Hz | 40,000 Hz |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Battery & charging | ||
| Battery life | 75 h | 45 h |
| Battery life with ANC | 45 h | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.3 |
| Bluetooth codecs | AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| USB-C | Yes | — |
| 3.5 mm jack / AUX | Yes | Yes |
