Understood. The question here (I think) is "what happens if you split the crossover into two sections and measure the impedence of one section at a time ?". On M60 and M80 there are two sets of binding posts, each connected to part of the crossover, and normally connected by bridging strips.
I thought the original poster was asking what the impedence would be at each pair of binding posts if the bridging strips were removed, ie if you were measuring impedence for "just the woofer" or "just the midrange & tweeter" sections.
I'm only guessing that the M60/M80 binding posts are wired with one pair going to the woofer and the other pair going to the midrange/tweeter but that seems like a reasonable assumption. They could be wired together internally for all I know
