Hi,
Here is my take on the EQ.
The raw data with corrected ER and PIR:
Score no EQ: 3.67
With Sub: 5.92
Spinorama with no EQ:
- Port again, looks like a recurring unwanted guest
- Fairly good directivity
- Not that smooth
Directivity:
Better stay at tweeter height
Horizontally, better toe-in the speakers by 10/20deg and have the axis crossing in front of the listening location, might help dosing the upper range.
EQ design:
I have generated two EQs. The
APO config files are attached.
- The first one, labelled, LW is targeted at making the LW flat
- The second, labelled Score, starts with the first one and adds the score as an optimization variable.
- The EQs are designed in the context of regular stereo use i.e. domestic environment, no warranty is provided for a near field use in a studio environment although the LW might be better suited for this purpose.
Score EQ LW: 4.5
with sub: 6.64
Score EQ Score: 5.05
with sub: 7.19
Code:
KRK 5 Gen 4 APO EQ LW 96000Hz
February252021-174633
Preamp: -0.8 dB
Filter 1: ON HPQ Fc 39 Hz Gain 0 dB Q 0.97
Filter 2: ON PK Fc 84.5 Hz Gain -2.36 dB Q 1.15
Filter 3: ON PK Fc 359 Hz Gain -0.96 dB Q 2.73
Filter 4: ON PK Fc 646 Hz Gain -3.75 dB Q 2.5
Filter 5: ON PK Fc 1356 Hz Gain -1.66 dB Q 5.4
Filter 6: ON PK Fc 4442 Hz Gain -1.59 dB Q 1.96
Filter 7: ON PK Fc 8005 Hz Gain -2.7 dB Q 1.87
Filter 8: ON PK Fc 10290 Hz Gain 2.43 dB Q 5.62
Filter 9: ON PK Fc 13639 Hz Gain -0.71 dB Q 2.44
KRK 5 Gen 4 APO EQ Score 96000Hz
February252021-174520
Preamp: -0 dB
Filter 1: ON HPQ Fc 40 Hz Gain 0 dB Q 0.97
Filter 2: ON PK Fc 85 Hz Gain -2.36 dB Q 1.15
Filter 3: ON PK Fc 367 Hz Gain -1.13 dB Q 1.87
Filter 4: ON PK Fc 646 Hz Gain -3.75 dB Q 2.5
Filter 5: ON PK Fc 1363 Hz Gain -2.28 dB Q 6.85
Filter 6: ON PK Fc 4425 Hz Gain -1.79 dB Q 1.46
Filter 7: ON PK Fc 8362 Hz Gain -3.7 dB Q 1.41
Filter 8: ON PK Fc 10158 Hz Gain 2.68 dB Q 5.62
Filter 9: ON PK Fc 13000 Hz Gain -1.06 dB Q 3.44
Spinorama EQ LW
Spinorama EQ Score
Zoom PIR-LW-ON
Regression - Tonal
Radar no EQ vs EQ score
Nice improvements
The rest of the plots is attached.