I purchased a pair of custom made speakers. They contain a 075 , 175 mid, and le15a drivers with a N7000 and an LX 5 freq dividing network. I would like to be sure they operate at the best possible capacity and am wondering if the crossovers may need rebiulding, upgrading? I would also like to make sure they are wired correstly. I have no reason to think they are not but would like to find information so I may know for myself. thanks