Speaker Cable Jumpers A electric guitar pickup is basically much like a powerful microphone coil. For decades, active microphones have been sent with the voice coil attached to the primary of the microphone's transformer, and maybe not referenced to floor (‘floating'). The microphone's event is normally connected to the wire shield, which is connected to the microphone amplifier's floor (see Rane's site for more discussion).
By and large, powerful microphones are very quiet units as a result of the mixture of transformer solitude and healthy, hanging transmission lines through the duration of, as well as shielded, humbucking coils.
So why not instruments? Guitars are notoriously overwhelmed by noise. Humbucking pickups are only an incomplete (though essential!) solution. Well-known answer is always to move your guitar pickup to a balanced productivity, being a microphone. An identical idea was published that 2001 patent program such as Speaker Cable Jumpers?