Thanks for the reply. Doing some sheetrock and electrical work in another room and the current setup is probably about 12 years old. Going from a 55” to 77”, and while I have work going on already, this seems like the time to optimize system. I’d like to keep on wall speakers. There isn’t anything at all that I find wrong with current speakers. I guess it’s more an issue of making it fit, and if m5hp’s would be worth a little extra carpentry.