What does the term 'bi-wiring' refer to in speaker connections?

The term 'bi-wiring' refers to using two sets of cables for one speaker, which allows for a more direct and efficient connection of the speaker's driver components. In a traditional single wire setup, both the low-frequency and high-frequency drivers are connected through one pair of cables. This can lead to interference between the signals intended for the different drivers.

By employing bi-wiring, separate cables are run from the amplifier to the speaker's low and high-frequency terminals. This configuration can help reduce distortion and improve the overall sound quality by allowing each driver to receive a cleaner, more dedicated signal. Bi-wiring is particularly useful in high-fidelity audio systems where sound quality is paramount.

The other options do not accurately describe bi-wiring; therefore, they do not apply in this context.