E Scale Guitar A electric guitar collection is basically just like a vibrant mike coil. For many years, powerful microphones have been sent with the voice coil attached to the principal of the microphone's transformer, and maybe not referenced to ground (‘floating'). The microphone's situation is usually attached to the cable shield, which is attached to the microphone amplifier's ground (see Rane's internet site for more discussion).
By and big, active microphones are very calm products consequently of the combination of transformer isolation and balanced, hanging transmission lines during, as well as shielded, humbucking coils.
So why not guitars? Instruments are notoriously plagued by noise. Humbucking pickups are only a partial (though crucial!) solution. The obvious answer would be to float practicing the guitar collection to a balanced output, just like a microphone. A similar strategy was published that 2001 patent application like this E Scale Guitar?