Nine String Guitars A guitar pickup is basically similar to a powerful mike coil. For decades, vibrant microphones have been wired with the voice coil attached with the primary of the microphone's transformer, and not referenced to ground (‘floating'). The microphone's event is typically linked to the cable shield, that will be attached to the mike amplifier's soil (see Rane's site for more discussion).
By and large, energetic microphones are very quiet devices consequently of the mix of transformer solitude and balanced, flying transmission lines during, along with shielded, humbucking coils.
So why don't you instruments? Instruments are notoriously affected by noise. Humbucking pickups are just an incomplete (though important!) solution. The most obvious solution is to move your guitar pickup to a balanced productivity, just like a microphone. A similar strategy was published that 2001 patent program such as Nine String Guitars?