Why is ER2XR Extended Response better than FD3?
ER2XR Extended Response has no measurable advantages in this pair.
Why is FD3 better than ER2XR Extended Response?
- Highest frequency16,000 Hz vs 40,000 Hz2.5×
- Lowest frequency20 Hz vs 10 Hz2×
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Semi-open |
| Driver type | — | Dynamic |
| Lowest frequency | 20 Hz | 10 Hz |
| Highest frequency | 16,000 Hz | 40,000 Hz |
| Impedance | 15 Ω | 32 Ω |
| Sensitivity | 96 dB | 111 dB |
| Hi-Res Audio | — | Yes |
| Connectivity | ||
| Wireless | No | No |
| 3.5 mm jack / AUX | Yes | — |
| Design & build | ||
| Weight | — | 7 g |
| Colours | Blue, Black | — |
