GR8 Reference
For the Grado GR8 · Reference · AutoEq via OPRA
Neutral
Response curve10 bands · ±9 dB
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Measurement-derived reference tuning for the Grado GR8. 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 | +3.3 | — |
| Peak | 220 Hz | -4.8 | 0.52 |
| Peak | 8.7 kHz | +6.4 | 1.31 |
| Peak | 2.9 kHz | +5.9 | 2.35 |
| Peak | 6.4 kHz | -6.1 | 5.58 |
| High Shelf | 10 kHz | +4.3 | — |
| Peak | 4.1 kHz | -3.6 | 6.00 |
| Peak | 2.0 kHz | +2.1 | 4.88 |
| Peak | 2.4 kHz | -1.4 | 4.83 |
| Peak | 3.4 kHz | +1.6 | 4.73 |
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