Watch The Giants Game A best guitar collection is basically just like a dynamic mike coil. For decades, vibrant microphones have been sent with the voice coil mounted on the primary of the microphone's transformer, and not called to surface (‘floating'). The microphone's case is normally attached to the cable shield, which will be connected to the mike amplifier's soil (see Rane's web site for more discussion).
By and large, energetic microphones are very quiet products consequently of the mixture of transformer solitude and balanced, suspended sign lines throughout, as well as protected, humbucking coils.
So why not instruments? Guitars are notoriously affected by noise. Humbucking pickups are only an incomplete (though important!) solution. The most obvious answer is always to float the guitar pickup to a balanced production, as being a microphone. The same idea was printed this 2001 patent software like this Watch The Giants Game?