separated biwire posts?

My speakers are equipped to biwire. Unlike most biwire ready speakers I've seen (all?), the upper and lower pair of posts have separate housings or terminal blocks. Significance ?
I would imagine that's just how the mfgr wanted to make them.What are they?
Shorter wire runs? Less cross talk?
"Shorter wire runs? Less cross talk?" Inconsequential.

I'm not sure what you mean exactly. I have had Mirage M series Si speakers and one binding post went to the woofer only and the other binding post went to the mid range and tweeter. Is that what you mean?
6550c. I think so. I'd have to open up the cabinet to find out. Not! Too bad we can't post pictures here
Tpr -- Status Electronics XS 7E