Please follow the order for max quality. Don’t forget to put every band, especially the reduction ones. This preset was designed for maximum iOS 14.
Eq from 20 hz with +2 dB gain and 0.0042 Q factor ;
Lowshelf from 20 hz with -18.5 dB ;
Lowshelf from 80 hz with +1 dB ;
Lowshelf from 100 hz with +4.5 dB ;
Lowshelf from 900 hz with +9 dB ;
Lowshelf from 1200 hz with +1.5 dB ;
Lowshelf from 1500 hz with +2 dB ;
Lowshelf from 1600 hz with +1 dB ;
Lowshelf from 4300 hz with -38 dB gain and 0.195 Q factor .
PS: this version is compiled/compressed
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edit: 1) fine-tuned below 100 hz
2) fine-tuned the 4500 hz band
3) fixed missing 20 hz sounds