Alto Powered Subwoofer A guitar collection is essentially similar to a vibrant mike coil. For decades, dynamic microphones have been wired with the style coil attached to the principal of the microphone's transformer, and not recommended to ground (‘floating'). The microphone's event is typically attached to the wire guard, which is attached to the mike amplifier's ground (see Rane's site for more discussion).
By and big, energetic microphones are very calm devices as a result of the mix of transformer solitude and balanced, hanging transmission lines throughout, as well as protected, humbucking coils.
Therefore why not instruments? Instruments are once affected by noise. Humbucking pickups are only an incomplete (though crucial!) solution. The obvious solution would be to move the guitar collection to a balanced productivity, being a microphone. A similar thought was printed this 2001 patent software like this Alto Powered Subwoofer?