@AudioQuestShill asked me to design an EQ for this speaker
Here it is.
Score no EQ: 4.88 nothing significantly wrong except the 700Hz resonance, ascending trend
View attachment 89661
Better stay at tweeter height and at about +/10deg horizontally
View attachment 89664
EQ design:
Score with EQ: 6.58 which impressive although quite a few biquads are rather sharp and may not translate on all speakers due to production tolerance. The optimizer agrees with
@amirm that the HF is a tad too hot out-of-the-box.
Code:
Infinity R162 APO EQ 96000Hz
October262020-182437
Preamp: -1 dB
Filter 1: ON PK Fc 122.5 Hz Gain -0.78 dB Q 4.24
Filter 2: ON PK Fc 155.5 Hz Gain -0.57 dB Q 4
Filter 3: ON PK Fc 724 Hz Gain -2.96 dB Q 6.33
Filter 4: ON PK Fc 1300 Hz Gain -1 dB Q 10
Filter 5: ON PK Fc 2164 Hz Gain 1.17 dB Q 2.79
Filter 6: ON PK Fc 3195.5 Hz Gain -0.93 dB Q 4.5
Filter 7: ON PK Fc 4758 Hz Gain -1.39 dB Q 4.28
Filter 8: ON PK Fc 6498 Hz Gain -0.94 dB Q 7.38
Filter 9: ON PK Fc 8505 Hz Gain -1.11 dB Q 7.16
Filter 10: ON PK Fc 15867 Hz Gain 1.5 dB Q 2.31
Filter 11: ON PK Fc 19111 Hz Gain -3.19 dB Q 0.47
View attachment 89663
Corresponding Spinorama:
View attachment 89660
Zoom PIR-LW-ON
View attachment 89658
Regression - tonal much flatter now
View attachment 89659
Very decent improvements:
View attachment 89662
The APO config file is attached as well as the rest of the analysis