I was helping a friend set up a new Outdoor kitchen Pool rec room sound system. He already has two surround systems downstairs, living room, Neither set up well. His new addition had a 70" 4K HDR, TV and was looking for sound. 5 wall octagon set up, next to outdoor patio and pool. What to do. Put a new Onkyo, and Klipsch RP-250S, side wall set up as a front channel speakers. Magic. Two speakers in one, added a sub, 5.1 and 7.1 is way over rated. A good stereo speaker and a sub can perform magic, forget all those extra speakers, try a pair of Klipsch RP-250S side wall speakers in a big room set up. Two speakers in one.