12 String Acoustic Electric A guitar pickup is actually just like an energetic microphone coil. For decades, active microphones have been wired with the style coil mounted on the primary of the microphone's transformer, and perhaps not recommended to soil (‘floating'). The microphone's situation is typically connected to the wire guard, which can be attached to the microphone amplifier's ground (see Rane's site for more discussion).
By and big, energetic microphones are extremely quiet devices as a result of the mixture of transformer solitude and balanced, suspended sign lines for the duration of, in addition to guarded, humbucking coils.
So why don't you instruments? Instruments are once overwhelmed by noise. Humbucking pickups are just an incomplete (though important!) solution. The obvious answer would be to move the guitar collection to a healthy result, just like a microphone. The same thought was printed that 2001 patent software like this 12 String Acoustic Electric?