Thanks again. One pair has BEC crossovers and the other pair just have new motor run type caps. Do you think the speakers have to be stacked? The reason I ask is the room they are in is not audio friendly. The front two heresy are on stands, and I have two in the rear that have corners to set in, right now doing nothing. Thinking of trying the rear speakers with the tweeter and squawker unhooked. What are your thoughts? Can I do any damage?