M Audio Midisport 2x2 A electric guitar pickup is essentially similar to a dynamic mike coil. For many years, active microphones have now been sent with the voice coil attached to the principal of the microphone's transformer, and maybe not called to surface (‘floating'). The microphone's situation is normally attached to the wire guard, which is attached to the microphone amplifier's soil (see Rane's internet site for more discussion).
By and big, dynamic microphones are very quiet products as a result of the mix of transformer isolation and healthy, hanging sign lines throughout, in addition to protected, humbucking coils.
So why don't you guitars? Guitars are notoriously plagued by noise. Humbucking pickups are merely a partial (though important!) solution. Well-known solution is to float the guitar collection to a healthy result, just like a microphone. The same thought was printed that 2001 patent application such as M Audio Midisport 2x2?