Drum Head Felt A electric guitar collection is basically much like an energetic mike coil. For many years, active microphones have now been wired with the style coil attached to the principal of the microphone's transformer, and not recommended to surface (‘floating'). The microphone's situation is normally linked to the cable shield, that will be linked to the mike amplifier's soil (see Rane's website for more discussion).
By and big, energetic microphones are extremely quiet devices consequently of the mix of transformer solitude and balanced, flying indication lines through the duration of, as well as protected, humbucking coils.
Therefore why don't you guitars? Guitars are once plagued by noise. Humbucking pickups are just a partial (though essential!) solution. The obvious answer is always to move your guitar pickup to a healthy output, being a microphone. The same strategy was published that 2001 patent application such as Drum Head Felt?