Beyer Dt 770s A electric guitar pickup is basically just like a dynamic microphone coil. For many years, powerful microphones have already been wired with the voice coil mounted on the primary of the microphone's transformer, and perhaps not referenced to floor (‘floating'). The microphone's situation is normally linked to the wire shield, which is linked to the mike amplifier's surface (see Rane's site for more discussion).
By and large, dynamic microphones are extremely calm devices consequently of the mix of transformer isolation and healthy, flying sign lines through the duration of, in addition to guarded, humbucking coils.
So why not instruments? Instruments are once overwhelmed by noise. Humbucking pickups are merely an incomplete (though essential!) solution. The most obvious alternative is to move your guitar pickup to a healthy output, as being a microphone. A similar idea was published this 2001 patent request like this Beyer Dt 770s?