Mtbound, I auditioned Studio 100s before I bought my M80s. The two, to my ear have many similarities although I must point out that I heard the Studios in a sound room at a local audio store vs my M80s in my family room. They are both very detailed speakers with full range, I felt the soundstage was wider on the M80s and the Studios were a little "cleaner" on the highs, otherwise they were very similar, to me. I haven't heard the Studio 60s, but auditioned the Monitor 7/9/11s as well as the Studio 100s.
