i think it would work, if your mics don't require power, and i would listen to shwilly here, a pre is a nice thing.. not neccesary but really nice. i don't know how the a/d's are on a D8, others could tell ya, but i don't know. i've seen it done, but it all depends on the mics, with a little more info, i'm sure someone can better answer your questions. and welcome aboard.