Speaker Cable Choose A electric guitar pickup is essentially much like an energetic microphone coil. For many years, powerful microphones have now been wired with the voice coil attached to the principal of the microphone's transformer, and maybe not referenced to surface (‘floating'). The microphone's event is normally connected to the cable shield, which is attached to the microphone amplifier's ground (see Rane's site for more discussion).
By and big, energetic microphones are very calm units consequently of the mixture of transformer isolation and healthy, floating indication lines through the duration of, in addition to shielded, humbucking coils.
So why not guitars? Guitars are once plagued by noise. Humbucking pickups are merely an incomplete (though essential!) solution. The obvious option is to move your guitar pickup to a balanced output, being a microphone. A similar strategy was printed that 2001 patent request like this Speaker Cable Choose?