HD 518 Reference
For the Sennheiser HD 518 · Reference · AutoEq via OPRA
Neutral
Response curve10 bands · ±9 dB
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Measurement-derived reference tuning for the Sennheiser HD 518. Profile by AutoEQ, measured by Rtings, and distributed through OPRA under CC BY-SA 4.0.
AutoEq via OPRA
Reference source- Profile
- AutoEQ
- Measured by
- Rtings
- 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 | +8.0 | — |
| Peak | 87 Hz | -5.4 | 0.34 |
| Peak | 1.8 kHz | +5.4 | 2.02 |
| Peak | 9.4 kHz | +2.7 | 1.11 |
| Peak | 40 Hz | +2.1 | 1.96 |
| High Shelf | 10 kHz | -1.5 | — |
| Peak | 6.6 kHz | +1.9 | 6.00 |
| Peak | 1.0 kHz | -0.5 | 3.42 |
| Peak | 5.7 kHz | -1.2 | 5.99 |
| Peak | 203 Hz | -0.3 | 3.85 |
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