Ibanez 12 String Acoustic A guitar collection is essentially similar to a vibrant mike coil. For decades, active microphones have now been wired with the voice coil attached to the principal of the microphone's transformer, and not introduced to surface (‘floating'). The microphone's situation is normally linked to the cable guard, that will be linked to the mike amplifier's soil (see Rane's website for more discussion).
By and large, powerful microphones are very calm devices consequently of the mixture of transformer isolation and balanced, hanging indication lines all through, in addition to protected, humbucking coils.
So why not guitars? Guitars are notoriously overwhelmed by noise. Humbucking pickups are only a partial (though essential!) solution. The obvious alternative is always to float practicing the guitar pickup to a healthy output, being a microphone. An identical thought was printed this 2001 patent application like this Ibanez 12 String Acoustic?