16 Channel Digital Mixer A best guitar pickup is actually just like an energetic mike coil. For many years, dynamic microphones have been wired with the voice coil mounted on the principal of the microphone's transformer, and not recommended to floor (‘floating'). The microphone's situation is usually attached to the wire guard, that is attached to the microphone amplifier's floor (see Rane's site for more discussion).
By and large, powerful microphones are extremely calm units consequently of the mixture of transformer solitude and balanced, flying transmission lines for the duration of, as well as guarded, humbucking coils.
Therefore why don't you instruments? Guitars are notoriously plagued by noise. Humbucking pickups are just an incomplete (though important!) solution. Well-known solution is always to float your guitar pickup to a balanced output, as being a microphone. An identical idea was printed this 2001 patent application such as 16 Channel Digital Mixer?