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4.0Noise control & calls6.1
Why is HD 505 SE Copper Edition better than Crusher 720?
- Highest frequency38,500 Hz vs 20,000 Hz+92%
- Lowest frequency12 Hz vs 20 Hz+67%
Why is Crusher 720 better than HD 505 SE Copper Edition?
Crusher 720 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 | — | 10 mm |
| Number of drivers | — | 4 |
| Lowest frequency | 12 Hz | 20 Hz |
| Highest frequency | 38,500 Hz | 20,000 Hz |
| Impedance | 120 Ω | 36 Ω |
| Sensitivity | 106 dB | 110 dB |
| Spatial / 3D audio | — | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | No |
| Transparency / ambient mode | — | Yes |
| Battery & charging | ||
| Battery life | — | 4 h |
| Battery capacity | — | 65 mAh |
| Charging time | — | 3 h |
| Quick charge (claimed) | — | 10 min → 4 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 5.3 |
| Multipoint (two devices) | — | Yes |
| LE Audio | — | Yes |
| Auracast | — | Yes |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | — |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | — | 363 g |
| Colours | Black | Future, True Black, Primer, Cement, Plasma |
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