IER-M9 Reference
For the Sony IER-M9 · Reference · AutoEq via OPRA
Neutral
Response curve10 bands · ±9 dB
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Measurement-derived reference tuning for the Sony IER-M9. Profile by AutoEQ, measured by crinacle, and distributed through OPRA under CC BY-SA 4.0.
AutoEq via OPRA
Reference source- Profile
- AutoEQ
- Measured by
- crinacle
- Target
- AutoEq default in-ear target
Converted to Spectra filter names; frequency, gain, and Q values are unchanged. The source preamp is replaced by Spectra automatic headroom after response verification.
Parametric bands10 active
| Type | Freq | Gain | Q |
|---|---|---|---|
| Low Shelf | 105 Hz | +0.7 | — |
| Peak | 176 Hz | -4.0 | 0.51 |
| Peak | 6.7 kHz | +5.2 | 1.61 |
| Peak | 2.7 kHz | +4.3 | 4.10 |
| Peak | 820 Hz | +1.5 | 2.04 |
| High Shelf | 10 kHz | -4.5 | — |
| Peak | 9.2 kHz | +2.7 | 2.55 |
| Peak | 3.6 kHz | -1.7 | 6.00 |
| Peak | 5.9 kHz | +1.4 | 5.98 |
| Peak | 7.0 kHz | -1.1 | 6.00 |
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