on’s cherished collection of microphones is legitimately among the finest in the world. It includes such utterly rare makes and models as the Neuman U47s, U48s, M49, M250, and numerous vintage AKG C-12s -- meaningless names to the layman but tantamount to a Stradivarious in the eyes of recording professionals and astute musicians. For although long since out of production, these microphones offer a warmth and clarity that has never been wholly replicated.