Why is IER-M500 better than SPM-PRO?
- Weight7 g vs 20 g2.9×
- Lowest frequency10 Hz vs 15 Hz+50%
- Highest frequency40,000 Hz vs 35,000 Hz+14%
Why is SPM-PRO better than IER-M500?
SPM-PRO has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 5 mm | — |
| Number of drivers | — | 2 |
| Lowest frequency | 10 Hz | 15 Hz |
| Highest frequency | 40,000 Hz | 35,000 Hz |
| Impedance | 16 Ω | 13 Ω |
| Sensitivity | 103 dB | 108 dB |
| Connectivity | ||
| Wireless | No | No |
| 3.5 mm jack / AUX | Yes | Yes |
| Design & build | ||
| Weight | 7 g | 20 g |
