Hello. I've been having a lot of problems with my old AVR that is a Pioneer SC-05. The room where this is at is wired for a 7.1 system with dual subs. Because the Pioneer is having increasing problems I've decided to replace it, & have chosen the Denon 3700. I know this receiver is a 9.1 system, but I'm going to use it in my 7.1 room. My problem is the selection of the outputs of the surround speakers. All of these speakers are mounted in the ceiling. My problem is that there are so many surround options to use from the Denon, & I was trying to make use of the best ones for my room. I've attached a picture of (most) the surround speakers, there is 1 more speaker outside of the LH side of the picture & it's spaced like you see on the RH side of the picture. The owners manual show a system with 4 ceiling speakers. Is this the best way to connect the speakers to the Denon, or is there a better combination of outputs to use?