Guild Electric Guitar A best guitar pickup is actually much like a dynamic mike coil. For decades, energetic microphones have been wired with the voice coil mounted on the primary of the microphone's transformer, and not referenced to ground (‘floating'). The microphone's event is usually connected to the wire shield, which is linked to the microphone amplifier's surface (see Rane's website for more discussion).
By and large, active microphones are extremely quiet units consequently of the mix of transformer isolation and healthy, hanging transmission lines all through, as well as shielded, humbucking coils.
So you will want to guitars? Instruments are notoriously affected by noise. Humbucking pickups are just an incomplete (though important!) solution. The most obvious option is always to float practicing the guitar pickup to a healthy output, being a microphone. A similar thought was published this 2001 patent software like this Guild Electric Guitar?