binding posts

You need to remove the metal plates if you biwire or biamp. You only need the plates if you run one set of wires into the speakers. Also, not only do you defeat the purpose of running the speaker bi- if you don't remove them, you can damage the speakers.

Also, not only do you defeat the purpose of running the speaker bi- if you don't remove them, you can damage the speakers.

Only if you cross wire them. 

You can run just 1 pair of speaker cables , but you need a jumper still

those metal plates are trash usually holdover cheap brass , a good set of jumpers 

just buy 2 ft of decent ofc copper awg 12, and just buy some spades or bananas 

you can get Cardas, or vampire gold copper , or WBT, orFurutech for a lot more monies  and sounds much better then the cheap jumper plates.