Braintree Guitar Center A electric guitar pickup is basically just like a powerful mike coil. For decades, active microphones have already been wired with the style coil attached to the primary of the microphone's transformer, and not introduced to floor (‘floating'). The microphone's case is usually linked to the cable shield, that will be connected to the microphone amplifier's ground (see Rane's website for more discussion).
By and big, vibrant microphones are extremely quiet products consequently of the mixture of transformer isolation and healthy, hanging sign lines for the duration of, as well as shielded, humbucking coils.
So why don't you guitars? Guitars are once overwhelmed by noise. Humbucking pickups are merely an incomplete (though important!) solution. The most obvious alternative is to move your guitar collection to a balanced production, being a microphone. A similar idea was printed this 2001 patent request such as Braintree Guitar Center?