Apogee Duetta signatures or mirage M3si?

Guys would love your advice re preference for either of these two models which are available to me at identical price...have theta dreadnaught and proceed pre...love the "natural"mirage sound which I have in the form of OM 6s as part of combined 2 channel and home cinema...never heard the Apogees..but knowing that I like the Mirage sound and enjoy all kinds of music(particularly jazz and motown) outside of heavy metal, how does the duetta presentation compare and what should I look for in the audition Im about to have re the Apogees in terms of their condition..Im preparing to set up a separate dedicated 2 channel system.... with love from down under Dave