Slate Digital Fg X A best guitar pickup is actually similar to a dynamic microphone coil. For decades, dynamic microphones have already been sent with the voice coil attached to the primary of the microphone's transformer, and not recommended to ground (‘floating'). The microphone's case is normally linked to the cable guard, which will be attached to the mike amplifier's floor (see Rane's internet site for more discussion).
By and large, vibrant microphones are very quiet devices consequently of the combination of transformer solitude and balanced, hanging indication lines throughout, in addition to guarded, humbucking coils.
So why not instruments? Guitars are notoriously affected by noise. Humbucking pickups are only an incomplete (though essential!) solution. Well-known option is to float the guitar pickup to a healthy production, being a microphone. An identical thought was published that 2001 patent application like this Slate Digital Fg X?