Ev N D967 A best guitar pickup is actually similar to a powerful mike coil. For many years, dynamic microphones have been sent with the voice coil mounted on the principal of the microphone's transformer, and not referenced to surface (‘floating'). The microphone's case is normally connected to the wire shield, which can be linked to the mike amplifier's floor (see Rane's website for more discussion).
By and large, energetic microphones are extremely calm products consequently of the mixture of transformer solitude and healthy, flying transmission lines for the duration of, as well as protected, humbucking coils.
Therefore why don't you guitars? Instruments are notoriously overwhelmed by noise. Humbucking pickups are only an incomplete (though important!) solution. The obvious option is always to float your guitar pickup to a balanced productivity, being a microphone. A similar idea was published this 2001 patent program such as Ev N D967?