IE 40 Pro Reference
For the Sennheiser IE 40 Pro · Reference · AutoEq via OPRA
Neutral
Response curve10 bands · ±9 dB
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Measurement-derived reference tuning for the Sennheiser IE 40 Pro. 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 | +5.0 | — |
| Peak | 138 Hz | -4.1 | 0.43 |
| Peak | 3.1 kHz | +6.6 | 1.39 |
| Peak | 1.4 kHz | -1.0 | 2.72 |
| Peak | 23 Hz | +2.9 | 6.00 |
| High Shelf | 10 kHz | -4.4 | — |
| Peak | 9.5 kHz | -2.0 | 1.84 |
| Peak | 4.4 kHz | +1.2 | 3.45 |
| Peak | 817 Hz | +0.6 | 2.11 |
| Peak | 294 Hz | -0.3 | 1.49 |
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