Hi Mike.
I actually own both libraries. Nucleus is basically a combo library that has taken essential bits from Audio Imperiaâs other libraries and put them into one package. It is more minimal in itâs articulation set and mic positions, with just sustained and spiccato and âclassicâ or âmodernâ but it does include some instruments not found in Jaeger.
Jaeger on the other hand is a full âepic cinematicâ library with strings, brass, percussion, vocals and sound design elements with multiple mic positions. My main problems with Jaeger is that they only include legato articulations for violins, cello, trumpet and horns. I also find the brass to be too loud and, well, brassy. There are also some recoding/editing problems across a few notes.
Overall, theyâre both good for âepicâ music styles, Jaeger is the better all-in-one, but Iâd have to say I like Nucleus better, at least for layering. Perhaps because itâs a newer library, it has a cleaner a smoother sound to it IMO.