Electric Guitar Black A guitar collection is actually just like a powerful microphone coil. For many years, dynamic microphones have already been wired with the voice coil mounted on the principal of the microphone's transformer, and perhaps not introduced to ground (‘floating'). The microphone's event is usually attached to the cable guard, which can be linked to the microphone amplifier's soil (see Rane's site for more discussion).
By and large, dynamic microphones are very quiet devices consequently of the mixture of transformer isolation and balanced, flying transmission lines throughout, in addition to guarded, humbucking coils.
Therefore why not guitars? Instruments are notoriously plagued by noise. Humbucking pickups are merely a partial (though crucial!) solution. The most obvious option would be to move your guitar collection to a balanced output, being a microphone. A similar idea was printed this 2001 patent program such as Electric Guitar Black?