Guitar Center Rentals A guitar pickup is essentially much like a vibrant microphone coil. For decades, dynamic microphones have now been sent with the style coil attached with the principal of the microphone's transformer, and maybe not recommended to surface (‘floating'). The microphone's situation is typically attached to the cable shield, that is linked to the mike amplifier's floor (see Rane's web site for more discussion).
By and big, vibrant microphones are extremely quiet devices as a result of the mix of transformer isolation and balanced, suspended transmission lines during, in addition to shielded, humbucking coils.
So why don't you instruments? Instruments are notoriously affected by noise. Humbucking pickups are just a partial (though important!) solution. The most obvious option is to float practicing the guitar pickup to a healthy production, just like a microphone. A similar idea was published that 2001 patent request like this Guitar Center Rentals?