biwired RCA speaker cables?

Shotgun or double run in same jacket? It simply prvides you with more flexibility to bi or triamp. Watch that the speaker doesn't complete a circuit from one amp to the other. As might occur by leaving the buss bar on,when using to different amps,if only one amp and your cool.

Not sure what you are trying to do. I am confused. Why do you want to use an interconnect as speaker cable? Where did you get that idea from?

Why? The advantages of biwiring are minor but, surely, only appreciated in the context of an excellent setup. Use of RCA connectors for speakers would disqualify.

Kal