Not 4sure if I'm going to have 4 L/R its just that I'm getting some power hungry CV xls215s and need to power them with a big amp. My current main L/R are CV E312s and will prob move them to the surrounds but maybe was thinking about putting them on top of the 215s and running them off of the receivers main L/R channels. I listen to music more than movies and am so deaf from all the years of loud music (then y am I getting 4-15s? Cause I need to hear it lol) that I prob wouldn't notice any image positioning problems that may arise anyways lol.