Surfing through my library, a pattern starts to form about which genres work best (for me) with the Immanis.
I have already mentioned symphonic, chamber music and jazz.
Another genre I find very enjoyable is electronica, where the sub-bass presence and resolution matches the capability of isolating sounds in a cavernous 3d stage, retrieving plankton-level details (while not exaggerating them), and a general sense of excitement / endless surprising effects.
This album is a trance-inducing experience.
When mixed with classical, theatrical soundscapes the Immanis strenghs adds up to a pretty new level of enjoyment in my book.