Left Hand Martin Guitars A guitar pickup is actually just like a dynamic microphone coil. For decades, powerful microphones have already been sent with the voice coil attached to the principal of the microphone's transformer, and not recommended to ground (‘floating'). The microphone's case is normally linked to the cable shield, which is linked to the microphone amplifier's ground (see Rane's website for more discussion).
By and big, dynamic microphones are extremely calm products consequently of the mixture of transformer isolation and healthy, floating indication lines throughout, in addition to guarded, humbucking coils.
So you will want to guitars? Instruments are notoriously overwhelmed by noise. Humbucking pickups are just a partial (though important!) solution. The most obvious solution is to float practicing the guitar collection to a healthy output, being a microphone. The same idea was printed this 2001 patent program such as Left Hand Martin Guitars?