Bowers And Wilkins Speakers Hi-fi Speaker Bi-wiring...?

Hi-fi speaker bi-wiring...? - bowers and wilkins speakers

My speakers are Bowers & Wilkins suited for bi-wiring. Not only 2 cables run separate entries for each speaker to the output of my amplifier? Given the cost of the speaker cable is a decent big advantage in sound quality?
My amplifiers and other devices is nothing special - just a decent Sony utensils.
Thanks