Bi-wiring

Bi-wiring is a means of connecting a loudspeaker to an audio amplifier, primarily used in hi-fi systems.

The purported advantage of this split is that it "reduces magnetic interaction in the cable, resulting in better sound".

[2] Some audiophiles feel that bi-wiring produces an audible improvement over standard single cabling.

For example, John Atkinson, writing in Stereophile, states that he observes "subtle but important" differences, particularly in reduction of treble hardness and improvement in bass control in one review.

[4] Bi-wiring should not be confused with the hi-fi practice of bi-amping: the use of a separate amplifier for each driver, which brings improved separation of signal frequencies and removes the need for passive crossovers and the degraded efficiency, linearity, and cost that comes with them.