Voodoo Lab Power A guitar pickup is actually just like a vibrant microphone coil. For decades, active microphones have been sent with the voice coil mounted on the primary of the microphone's transformer, and not referenced to surface (‘floating'). The microphone's event is normally connected to the cable guard, that is attached to the mike amplifier's soil (see Rane's internet site for more discussion).
By and big, energetic microphones are very quiet products as a result of the combination of transformer solitude and healthy, floating indication lines during, in addition to shielded, humbucking coils.
Therefore why not instruments? Guitars are notoriously plagued by noise. Humbucking pickups are only an incomplete (though crucial!) solution. Well-known option is to move your guitar collection to a balanced result, just like a microphone. The same strategy was published that 2001 patent request like this Voodoo Lab Power?