Best Of Johhny Cash A guitar pickup is essentially similar to a vibrant microphone coil. For many years, powerful microphones have now been sent with the voice coil mounted on the primary of the microphone's transformer, and not called to ground (‘floating'). The microphone's case is normally linked to the wire shield, that is linked to the microphone amplifier's surface (see Rane's website for more discussion).
By and large, active microphones are very calm units as a result of the combination of transformer solitude and healthy, hanging transmission lines throughout, as well as protected, humbucking coils.
Therefore why don't you guitars? Guitars are notoriously plagued by noise. Humbucking pickups are merely a partial (though essential!) solution. The obvious option is to move your guitar pickup to a healthy result, as being a microphone. A similar idea was printed that 2001 patent request like this Best Of Johhny Cash?