Make Noise Rosie A guitar collection is actually much like a powerful 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 surface (‘floating'). The microphone's case is typically connected to the cable guard, which is connected to the microphone amplifier's floor (see Rane's site for more discussion).
By and big, powerful microphones are very quiet products consequently of the combination of transformer solitude and balanced, floating sign lines throughout, in addition to guarded, humbucking coils.
Therefore why not guitars? Guitars are notoriously affected by noise. Humbucking pickups are only a partial (though crucial!) solution. Well-known answer would be to float your guitar collection to a healthy production, just like a microphone. An identical idea was published that 2001 patent program like this Make Noise Rosie?