Greg Brown Tour A guitar collection is actually similar to a powerful mike coil. For decades, active microphones have been wired with the style coil mounted on the principal of the microphone's transformer, and perhaps not introduced to ground (‘floating'). The microphone's event is normally attached to the wire shield, that is attached to the mike amplifier's floor (see Rane's website for more discussion).
By and large, vibrant microphones are extremely calm devices as a result of the combination of transformer isolation and balanced, flying sign lines all through, as well as guarded, humbucking coils.
So why not guitars? Instruments are notoriously plagued by noise. Humbucking pickups are merely an incomplete (though important!) solution. The obvious option would be to move your guitar collection to a healthy production, just like a microphone. The same thought was published this 2001 patent request like this Greg Brown Tour?