Why is 4XD1J77351 better than RP-TCM225?
4XD1J77351 has no measurable advantages in this pair.
Why is RP-TCM225 better than 4XD1J77351?
- Lowest frequency100 Hz vs 20 Hz5×
- Driver size9 mm vs 10 mm+11%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Dynamic |
| Driver size | 9 mm | 10 mm |
| Lowest frequency | 100 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 32 Ω | 32 Ω |
| Sensitivity | — | 106 dB |
| Connectivity | ||
| Wireless | No | No |
| USB-C | Yes | Yes |
| Design & build | ||
| Colours | Black | — |
| Features | ||
| Hands-free calls | Yes | — |
