Bass String Quality A guitar pickup is actually similar to a powerful mike coil. For decades, dynamic microphones have already been wired with the style coil mounted on the principal of the microphone's transformer, and maybe not introduced to ground (‘floating'). The microphone's case is typically connected to the wire guard, which is attached to the mike amplifier's soil (see Rane's website for more discussion).
By and large, powerful microphones are very quiet products as a result of the mix of transformer solitude and healthy, suspended transmission lines during, as well as protected, humbucking coils.
Therefore why don't you instruments? Guitars are notoriously overwhelmed by noise. Humbucking pickups are only an incomplete (though crucial!) solution. Well-known alternative would be to float practicing the guitar collection to a balanced output, being a microphone. The same strategy was printed this 2001 patent request such as Bass String Quality?