Guitar String Endorsements A guitar pickup is basically just like a dynamic mike coil. For decades, dynamic microphones have now been wired with the style coil mounted on the primary of the microphone's transformer, and not referenced to ground (‘floating'). The microphone's situation is normally linked to the wire guard, that is connected to the microphone amplifier's surface (see Rane's site for more discussion).
By and big, vibrant microphones are very quiet units consequently of the mixture of transformer solitude and balanced, hanging indication lines during, in addition to shielded, humbucking coils.
So why don't you guitars? Instruments are notoriously plagued by noise. Humbucking pickups are just an incomplete (though crucial!) solution. The obvious option would be to float practicing the guitar collection to a balanced result, being a microphone. An identical strategy was printed this 2001 patent program such as Guitar String Endorsements?