Vandersteen has both written and talked for many years about the merits of bi-wiring. I attended a seminar last year with Richard where he stated his conclusion that the primary benefit of bi-wiring comes from keeping the electrical fields of the low-frequency signal separated from the electrical fields of the mid and high-frequency signals. Vandersteen says his research indicates that the improved performance gained from bi-wiring is more attributable to this aspect of electrical field interaction than to any inherent advantage from having separate crossovers for the various frequency ranges.
Richard also recommends that the two "legs" of each biwire pair be physically separated by at least several inches, and if the two wires must cross over each other, it should be at right angles.
On the biwire sets I use with my Vandy 3A Sig's, I used several wooden "pegs" that are V-shaped at each end to keep the biwire pairs about 4" apart throughout their entire length, up to where they connect to the speaker (where they obviously must be close to allow connection to the binder posts).
Richard also recommends that the two "legs" of each biwire pair be physically separated by at least several inches, and if the two wires must cross over each other, it should be at right angles.
On the biwire sets I use with my Vandy 3A Sig's, I used several wooden "pegs" that are V-shaped at each end to keep the biwire pairs about 4" apart throughout their entire length, up to where they connect to the speaker (where they obviously must be close to allow connection to the binder posts).