3.8Noise control & calls3.8
Why is HEDDphone D1 better than 109 Pro?
- Weight350 g vs 375 g+7%
- Highest frequency40,000 Hz vs 30,000 Hz+33%
Why is 109 Pro better than HEDDphone D1?
109 Pro has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Open-back | — |
| Driver type | Dynamic | — |
| Driver size | — | 50 mm |
| Lowest frequency | 5 Hz | 5 Hz |
| Highest frequency | 40,000 Hz | 30,000 Hz |
| Impedance | 32 Ω | 40 Ω |
| Sensitivity | 100 dB | 112 dB |
| Noise control | ||
| Active noise cancelling | No | No |
| Battery & charging | ||
| Charging time | 3 h | — |
| Connectivity | ||
| Wireless | No | No |
| 3.5 mm jack / AUX | Yes | Yes |
| Design & build | ||
| Weight | 350 g | 375 g |
| Colours | Black | — |









