I just bought a new home and I have 5.1 surround prewired in my ceilings. Four speaker connections 2 up front and 2 in the back. If I was to buy a 5.1 system how should I set it up? Rears hanging from the ceiling behind me and what about the fronts. Would there be any issues with the fronts hanging from the ceiling and center channel down by the tv? I can't hang the center channel from the ceiling so should I just bring all the fronts down and leave the rears elevated?