So now that my Mcintosh MHT200 and MVP861 are boat anchors, I need to upgrade. My current speaker system set-up is a 5.1 Revel Performa3 (F32 towers with matching side surrounds and b15a subwoofer ). I would like to keep options open for 7.1 or 7.2 plus the possibility of adding object based height speakers. I like what I hear on the marantz forum about the 8802 pre/pro. My first thought was to power it with a Mac mc8207 7 channel amp, having the extra 2 amps if I should increase to 7.1; or would I be better served getting a 5 channel amp to start off with. If so, which would you prefer; Parasound A51 Halo or a Mac mc205? I guess my first question would be 5 or 7 channel amp to start with?