Jimmy Page Tour 2017 A guitar collection is actually much like a powerful microphone coil. For decades, powerful microphones have now been wired with the voice coil mounted on the principal of the microphone's transformer, and not introduced to floor (‘floating'). The microphone's case is normally attached to the cable shield, which is connected to the microphone amplifier's surface (see Rane's site for more discussion).
By and big, active microphones are extremely quiet devices as a result of the combination of transformer isolation and healthy, flying transmission lines through the duration of, in addition to protected, humbucking coils.
Therefore why don't you instruments? Instruments are once affected by noise. Humbucking pickups are only a partial (though crucial!) solution. Well-known alternative is always to float your guitar collection to a balanced output, being a microphone. A similar thought was printed that 2001 patent program like this Jimmy Page Tour 2017?