[92snowmachine]

the second to last picture would be a good setup but you could make things easier if you just wire the + and - in series to your speaker. tie both + and - channels together at your amp into one wire to + and - at your speaker, then run a second set of wires between the other terminals on the speaker. what changes the ohm load is if the speakers are wired in series as described or in parallel which has them wired seperately