Electric Acoustic Guitar Used A best guitar pickup is basically similar to a dynamic microphone coil. For decades, dynamic microphones have been wired with the style coil attached with the primary of the microphone's transformer, and not introduced to ground (‘floating'). The microphone's situation is typically connected to the wire shield, which will be connected to the microphone amplifier's soil (see Rane's internet site for more discussion).
By and large, powerful microphones are extremely quiet products as a result of the mix of transformer isolation and healthy, floating sign lines through the duration of, along with shielded, humbucking coils.
Therefore why not instruments? Instruments are notoriously plagued by noise. Humbucking pickups are only an incomplete (though important!) solution. The obvious option would be to float your guitar collection to a balanced output, just like a microphone. The same strategy was printed this 2001 patent software such as Electric Acoustic Guitar Used?