EASY-PEASY: Anything Magnepan SET-UP correctly with quality electronics. (You only hear what you enter into them, good or bad.)
RE: poster who suggested horn speakers. PLEASE listen to ANY properly set-up horn speaker next to a set of properly set-up Maggies of pretty much any era. You may not change your mind, but I kinda think you will. Be sure to listen to your favorite music on both.
Cheers!