HD 25 Reference
For the Sennheiser HD 25 · Reference · AutoEq via OPRA · 0 downloads
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| lowShelf | 105 Hz | +6.7 dB | 0.7 |
| peaking | 235 Hz | -4.9 dB | 0.39 |
| peaking | 597 Hz | +5.8 dB | 1 |
| peaking | 5.3 kHz | +7.3 dB | 1.74 |
| peaking | 8.5 kHz | -6 dB | 1.2 |
| highShelf | 10 kHz | +4.5 dB | 0.7 |
| peaking | 56 Hz | +0.8 dB | 2.17 |
| peaking | 91 Hz | -1.1 dB | 2.6 |
| peaking | 176 Hz | +0.8 dB | 2.47 |
| peaking | 279 Hz | -0.6 dB | 2.16 |
Measurement-derived reference tuning for the Sennheiser HD 25. 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.