Monroeville Guitar Center A guitar pickup is actually much like a dynamic microphone coil. For decades, energetic microphones have already been wired with the voice coil attached to the primary of the microphone's transformer, and not referenced to floor (‘floating'). The microphone's situation is usually linked to the wire guard, which will be connected to the mike amplifier's ground (see Rane's site for more discussion).
By and big, active microphones are very quiet devices as a result of the combination of transformer isolation and balanced, suspended sign lines for the duration of, along with guarded, humbucking coils.
So why not guitars? Guitars are notoriously overwhelmed by noise. Humbucking pickups are just an incomplete (though important!) solution. The obvious alternative would be to float the guitar pickup to a balanced production, just like a microphone. An identical strategy was published that 2001 patent request such as Monroeville Guitar Center?