Digital Piano Kawai Cn24 A guitar collection is actually similar to a dynamic mike coil. For decades, active microphones have been wired with the style coil attached with the primary of the microphone's transformer, and not referenced to ground (‘floating'). The microphone's case is typically attached to the cable guard, which is connected to the mike amplifier's ground (see Rane's website for more discussion).
By and large, powerful microphones are very calm devices consequently of the mix of transformer solitude and healthy, floating sign lines through the duration of, as well as shielded, humbucking coils.
Therefore why not guitars? Guitars are once plagued by noise. Humbucking pickups are just an incomplete (though crucial!) solution. Well-known alternative is always to float your guitar pickup to a balanced output, just like a microphone. An identical thought was published that 2001 patent application like this Digital Piano Kawai Cn24?