Roland Cube 15 A electric guitar collection is basically similar to a dynamic microphone coil. For decades, dynamic microphones have already been sent with the style coil attached to the principal of the microphone's transformer, and perhaps not recommended to floor (‘floating'). The microphone's case is typically attached to the wire shield, which will be connected to the mike amplifier's soil (see Rane's site for more discussion).
By and large, vibrant microphones are very calm products consequently of the mix of transformer solitude and healthy, suspended indication lines during, as well as shielded, humbucking coils.
Therefore you will want to guitars? Guitars are notoriously plagued by noise. Humbucking pickups are merely a partial (though important!) solution. The most obvious answer would be to move practicing the guitar pickup to a healthy output, just like a microphone. The same thought was printed that 2001 patent application such as Roland Cube 15?