Hello, I currently use and love the Midjay Plus (and before that the Midjay). I am thinking about the Audya 4 ... Would it be that much (a couple thousand $ worth) of an upgrade? Is there much difference in the OS compared to the MJ+? Would you say that the required learning curve may be reasonable in light of my familiarity with the MJ+ (I still haven't got the hang of my SD1 Plus) and are the OS's in any way related? Is it possible to EQ each audio input separately and thereby forego the need for a mixer? Thanks.