Blackstar 1x12 Cab A guitar pickup is actually just like an energetic mike coil. For many years, dynamic microphones have now been sent with the voice coil mounted on the primary of the microphone's transformer, and maybe not referenced to ground (‘floating'). The microphone's situation is normally attached to the cable guard, that is attached to the microphone amplifier's floor (see Rane's site for more discussion).
By and large, powerful microphones are very quiet units as a result of the mixture of transformer isolation and balanced, floating indication lines all through, in addition to shielded, humbucking coils.
So why don't you guitars? Instruments are once overwhelmed by noise. Humbucking pickups are just a partial (though important!) solution. The most obvious alternative is to float your guitar pickup to a balanced productivity, just like a microphone. An identical idea was printed this 2001 patent application like this Blackstar 1x12 Cab?