Most speaker wire is 2 wires running parallel without a twist or a long capacitor and can alter cross over frequencies. The twist in most building approved cables cancels the capacitance and gives a truer cross over performance.
Capacitance is a function of the area of the two conductive surfaces, the spacing between them, and the dielectric material which separates them.
Everything else being equal, how is twisting two wires together supposed to reduce capacitance?
