Professional Acoustic Guitar A guitar collection is actually similar to a dynamic microphone coil. For decades, dynamic microphones have now been wired with the style coil mounted on the principal of the microphone's transformer, and maybe not called to floor (‘floating'). The microphone's event is typically linked to the cable guard, which can be attached to the microphone amplifier's floor (see Rane's web site for more discussion).
By and large, active microphones are extremely quiet units consequently of the combination of transformer isolation and healthy, floating indication lines for the duration of, in addition to protected, humbucking coils.
Therefore you will want to instruments? Instruments are notoriously affected by noise. Humbucking pickups are just a partial (though essential!) solution. The most obvious option would be to float the guitar collection to a balanced output, just like a microphone. A similar idea was printed this 2001 patent request such as Professional Acoustic Guitar?