HD 660S2 Reference
For the Sennheiser HD 660S2 · Reference · AutoEq via OPRA
Neutral
Response curve10 bands · ±9 dB
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Measurement-derived reference tuning for the Sennheiser HD 660S2. 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 | +6.8 | — |
| Peak | 10 kHz | -4.1 | 0.70 |
| Peak | 4.4 kHz | +7.5 | 2.46 |
| Peak | 112 Hz | -2.5 | 0.36 |
| Peak | 495 Hz | +0.9 | 1.48 |
| High Shelf | 10 kHz | -0.8 | — |
| Peak | 1.3 kHz | -0.9 | 2.31 |
| Peak | 1.9 kHz | +0.8 | 3.51 |
| Peak | 57 Hz | -0.4 | 2.04 |
| Peak | 37 Hz | +0.6 | 3.35 |
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