What's the Difference Between Balanced and Unbalanced?

Balanced audio uses three conductors to carry the audio signal. Two of the conductors carry negative and positive signals (audio is an AC signal), and the third is used for grounding. With an unbalanced signal, there are only two conductors. One carries positive, the carries negative and is also used for ground.

Should I use balanced or unbalanced cables?

With balanced cables, you don't get the same distortions, so they can be much longer without any detriment to your sound quality. That said, when the cord length is under 10 feet, unbalanced cables actually have a stronger signal than balanced cables.

What is a main difference between balanced and unbalanced?

In balanced forces, the magnitude of the two forces is equal, whereas, in the case of unbalanced forces, the magnitude of the two forces are unequal. In balanced forces, the two individual forces act in opposite direction. Conversely, in unbalanced forces, the individual forces either act in same or opposite direction.