I actually also own a 7hz Zero, and I must say, to
my ears, the old couplers measurements still sound more correct. According to the 5128 measurements there is supposed to be a huge 11,8k peak. I just do not hear at all. My peak is at about 13k just like in Oratory1990s and Crinacles 711 measurements.
I would like you to try this EQ. It is based on DF 1,3db tilt + bass shelf with the old coupler. I found this target on
https://suporsalad.squig.link/?share=DF_Tilt_711_Ref_Target.
But while I did use Side Salads
target, I uploaded Oratory1990s
7hz Zero measurement. It is the best target I have heard yet
. But your ear and taste might differ, of course.
Preamp: -4.7 dB
Filter 1: ON PK Fc 20 Hz Gain 1.0 dB Q 2.000
Filter 2: ON PK Fc 38 Hz Gain 2.2 dB Q 0.500
Filter 3: ON PK Fc 200 Hz Gain -1.0 dB Q 1.000
Filter 4: ON PK Fc 740 Hz Gain 1.3 dB Q 1.400
Filter 5: ON PK Fc 1400 Hz Gain -2.2 dB Q 2.000
Filter 6: ON PK Fc 2400 Hz Gain 2.1 dB Q 2.000
Filter 7: ON PK Fc 5400 Hz Gain -1.8 dB Q 1.500
Filter 8: ON PK Fc 8100 Hz Gain -2.5 dB Q 1.800
Filter 9: ON PK Fc 10000 Hz Gain 6.8 dB Q 2.000
Filter 10: ON PK Fc 14000 Hz Gain -3.6 dB Q 2.000