Passion Tour 2017 A guitar pickup is basically just like a vibrant microphone coil. For decades, active microphones have now been wired with the voice coil attached to the primary of the microphone's transformer, and perhaps not referenced to soil (‘floating'). The microphone's event is usually linked to the cable guard, that is connected to the microphone amplifier's surface (see Rane's website for more discussion).
By and big, dynamic microphones are extremely calm products as a result of the combination of transformer isolation and balanced, hanging sign lines for the duration of, along with shielded, humbucking coils.
So why don't you guitars? Instruments are once plagued by noise. Humbucking pickups are only a partial (though essential!) solution. The most obvious answer would be to move your guitar pickup to a balanced output, as being a microphone. An identical strategy was published that 2001 patent program such as Passion Tour 2017?