The thread below may have some insight on some initial HK settings for those who don't consider themselves audiophiles...
https://f80.bimmerpost.com/forums/sh....php?t=1006751
Different platform obviously (it is the F8x/F3x platform) so the cabin dynamics will be different than the X7 and I am sure the HK settings on ID7 may be a bit different than the HK settings on ID4/5/6. But I used some of the settings suggested in this thread as a starting point and it made a world of difference and helped to take some of the "trial & error" out of getting the HK system sounding the way I wanted.