Custom Drum Heads Evans A guitar collection is actually much like a powerful microphone coil. For decades, powerful microphones have been wired with the style coil mounted on the principal of the microphone's transformer, and not referenced to ground (‘floating'). The microphone's case is typically connected to the cable guard, that will be connected to the microphone amplifier's ground (see Rane's web site for more discussion).
By and big, dynamic microphones are very quiet devices as a result of the mix of transformer solitude and balanced, flying indication lines for the duration of, in addition to shielded, humbucking coils.
So you will want to guitars? Guitars are notoriously affected by noise. Humbucking pickups are only an incomplete (though important!) solution. The obvious alternative is to float your guitar collection to a healthy output, as being a microphone. A similar idea was published that 2001 patent program such as Custom Drum Heads Evans?