I read all this response to my original post - and got more confused.
I wired my 2231s so they move out with + voltage going to the red input terminal. (Though I bi-amp these 4343s, I don't see why this would make any difference.)
I wired my 2121s to be in phase with the 2231s, which put the white wire to the speaker's red terminal. Is this a mistake? (I ran the + voltage to the 2121s through the crossover to determine cone direction)
I wired the 2420s with the red wire going to the red speaker terminal.
I wired the 2405s with the red wire going to the red speaker terminal.
Remember that I'm trying to wire these to all "play forward" or be "positive".
I may still not have these correct for a complete "In Phase" system, so let's not drop this until we figure this out.
Thanks,
Tom