IB wiring help

Figuring out how to wire a speaker gets much more complicated once you go past one. My Tempests went up the street to a neighbor, where they were complicated enough because they had dual voice coils. I managed (check older posts) to figure out how to wire them with some consulting, but Andy wants three of them. He should have four, which is how we cut the MDF, but since it is a line array, the need for opposing drivers doesn't factor, and WAF took over.

In any case, I called my friends, asked the Cult, got advice from EEs (I forgot the formula for calculating resistance in parallel- for reference it is Rp=(R1xR2)/(R1+R2).) until I finally came across this link for wiring pro speakers. There's even a cgi speaker calculator.