Yamaha Tom Mount A guitar collection is basically much like an energetic mike coil. For decades, dynamic microphones have already been sent with the voice coil attached with the principal of the microphone's transformer, and maybe not introduced to soil (‘floating'). The microphone's case is normally attached to the cable guard, which will be connected to the mike amplifier's soil (see Rane's site for more discussion).
By and large, powerful microphones are very calm devices consequently of the mixture of transformer isolation and healthy, suspended indication lines throughout, as well as shielded, humbucking coils.
Therefore why don't you guitars? Guitars are notoriously affected by noise. Humbucking pickups are merely a partial (though important!) solution. The most obvious option is to float your guitar collection to a balanced output, just like a microphone. An identical strategy was printed that 2001 patent application such as Yamaha Tom Mount?