Electric Bass Guitar Body A guitar pickup is essentially just like a powerful mike coil. For decades, active microphones have now been sent with the style coil attached with the primary of the microphone's transformer, and not referenced to ground (‘floating'). The microphone's event is usually connected to the cable shield, which can be linked to the mike amplifier's surface (see Rane's site for more discussion).
By and big, energetic microphones are extremely quiet devices consequently of the mixture of transformer solitude and healthy, flying indication lines during, in addition to shielded, humbucking coils.
Therefore why don't you instruments? Guitars are once plagued by noise. Humbucking pickups are just an incomplete (though crucial!) solution. Well-known solution would be to float the guitar collection to a healthy result, just like a microphone. A similar strategy was printed this 2001 patent software such as Electric Bass Guitar Body?