Roland Cy 5 A electric guitar pickup is essentially just like a vibrant microphone coil. For decades, vibrant microphones have already been wired with the voice coil mounted on the primary of the microphone's transformer, and not referenced to floor (‘floating'). The microphone's case is typically attached to the wire shield, that is attached to the mike amplifier's floor (see Rane's website for more discussion).
By and big, powerful microphones are extremely quiet products consequently of the mixture of transformer solitude and balanced, flying indication lines during, in addition to shielded, humbucking coils.
So you will want to guitars? Guitars are notoriously affected by noise. Humbucking pickups are only a partial (though crucial!) solution. The most obvious option is always to float practicing the guitar collection to a healthy production, as being a microphone. The same thought was printed that 2001 patent application such as Roland Cy 5?