Guitar Center Elmwood A electric guitar pickup is essentially just like a vibrant microphone coil. For many years, active microphones have already been wired with the voice coil attached to the principal of the microphone's transformer, and not referenced to floor (‘floating'). The microphone's event is typically attached to the wire shield, which will be connected to the microphone amplifier's soil (see Rane's site for more discussion).
By and large, energetic microphones are extremely quiet units consequently of the combination of transformer solitude and balanced, hanging sign lines for the duration of, in addition to guarded, humbucking coils.
Therefore why not instruments? Instruments are notoriously plagued by noise. Humbucking pickups are only a partial (though essential!) solution. The obvious solution is always to float the guitar pickup to a balanced production, just like a microphone. The same idea was published this 2001 patent request such as Guitar Center Elmwood?