Here are some thoughts about the EQ.
Notes about the EQ design:
- The average L/R is used to calculate the score.
- The resolution is 12 points per octave interpolated from the raw data (provided by @amirm)
- A Genetic Algorithm is used to optimize the EQ.
- The EQ Score is designed to MAXIMIZE the Score WHILE fitting the Harman target curve with a fixed complexity.
This will avoid weird results if one only optimizes for the Score.
It will probably flatten the Error regression doing so, the tonal balance should be more neutral.
- The EQs are starting point and may require tuning (certainly at LF).
- The range around and above 10kHz is usually not EQed unless smooth enough to do so.
- I am using PEQ (PK) as from my experience the definition is more consistent across different DSP/platform implementations than shelves.
- With some HP/amp combo the boosts and preamp gain need to be carefully considered to avoid issues
- Not all units of the same product are made equal. The EQ is based on the measurements of a single unit.
- YMMV with regards to the very unit you are trying this EQ on.
OK L/R match.
I have generated one EQ, the
APO config file is attached.
Audeze drivers can take a lot of EQ but caution still applies.
This design might be problematic in terms of fitting on some heads/ears.
Tune the LF boost to your own fit.
Diffused field might be closer to the designed target...
Score no EQ: 72.2
Score Armirm: 83.0
Score with EQ: 94.5
Code:
Audeze SINE APO EQ Flat@HF 96000Hz
October182021-143551
Preamp: -12 dB
Filter 1: ON PK Fc 37.69 Hz Gain 12.00 dB Q 0.64
Filter 2: ON PK Fc 3247.19 Hz Gain -3.63 dB Q 3.98
Filter 3: ON PK Fc 5266.36 Hz Gain 7.00 dB Q 0.84
Filter 4: ON PK Fc 7694.66 Hz Gain -3.50 dB Q 4.00
Filter 5: ON PK Fc 12489.87 Hz Gain -6.57 dB Q 3.60
View attachment 159851