Celestion G12t 100 A guitar pickup is basically just like a dynamic microphone coil. For decades, active microphones have already been wired with the style coil mounted on the principal of the microphone's transformer, and not recommended to surface (‘floating'). The microphone's situation is usually linked to the wire shield, which is connected to the microphone amplifier's surface (see Rane's web site for more discussion).
By and big, active microphones are very calm units as a result of the mixture of transformer isolation and healthy, suspended indication lines during, in addition to guarded, humbucking coils.
So why don't you guitars? Instruments are notoriously plagued by noise. Humbucking pickups are just a partial (though essential!) solution. The most obvious alternative is to float practicing the guitar pickup to a balanced production, just like a microphone. The same idea was printed that 2001 patent request like this Celestion G12t 100?