I used to bi-wire but doubt I could really hear a difference. Just did it because the speakers were set up for it and the speaker cable I used at the time allowed it. With current sp. cable (Morrow SP4 or Clear Day double shotgun) I single wire and use Clear Day jumpers. Even so, have played around with connecting to top or bottom posts or diagonally. Just something else to make one's self crazy. Current iteration is diagonal with red to low and black to hi freq. posts. Again, not sure I can really hear a difference.