Silk Quilt King A best guitar collection is actually just like a vibrant microphone coil. For decades, dynamic microphones have been sent with the voice coil attached to the principal of the microphone's transformer, and perhaps not recommended to floor (‘floating'). The microphone's case is typically linked to the cable guard, which can be attached to the mike amplifier's ground (see Rane's website for more discussion).
By and large, dynamic microphones are extremely quiet units as a result of the mixture of transformer isolation and balanced, suspended sign lines during, along with shielded, humbucking coils.
Therefore why not instruments? Instruments are notoriously affected by noise. Humbucking pickups are merely a partial (though important!) solution. The obvious alternative would be to move the guitar pickup to a balanced output, just like a microphone. The same idea was printed this 2001 patent application like this Silk Quilt King?