KPH30i Reference
For the Koss KPH30i · Reference · AutoEq via OPRA
Neutral
Response curve10 bands · ±9 dB
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Measurement-derived reference tuning for the Koss KPH30i. 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 over-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 | +6.9 | — |
| Peak | 124 Hz | -4.6 | 0.47 |
| Peak | 583 Hz | +1.0 | 1.17 |
| Peak | 46 Hz | +3.2 | 2.36 |
| Peak | 54 Hz | -1.6 | 1.17 |
| High Shelf | 10 kHz | +2.1 | — |
| Peak | 4.0 kHz | +2.8 | 6.00 |
| Peak | 2.1 kHz | -2.1 | 2.47 |
| Peak | 2.9 kHz | +2.6 | 3.67 |
| Peak | 6.8 kHz | +2.8 | 5.26 |
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