Williams Allegro 2 88 Key A guitar pickup is basically much like a powerful microphone coil. For decades, active microphones have been sent with the style coil attached with the principal of the microphone's transformer, and maybe not referenced to surface (‘floating'). The microphone's case is normally attached to the wire shield, which is attached to the mike amplifier's surface (see Rane's site for more discussion).
By and large, vibrant microphones are very quiet devices consequently of the mix of transformer solitude and healthy, suspended sign lines for the duration of, in addition to guarded, humbucking coils.
Therefore why don't you instruments? Instruments are once plagued by noise. Humbucking pickups are just an incomplete (though essential!) solution. Well-known option is to move the guitar collection to a healthy result, being a microphone. A similar strategy was printed that 2001 patent request such as Williams Allegro 2 88 Key?