Shure Lavalier Microphone A best guitar collection is actually much like a vibrant microphone coil. For many years, dynamic microphones have been wired with the voice coil mounted on the principal of the microphone's transformer, and perhaps not called to soil (‘floating'). The microphone's event is normally connected to the cable shield, which can be attached to the mike amplifier's floor (see Rane's website for more discussion).
By and big, active microphones are extremely quiet devices as a result of the mix of transformer isolation and balanced, suspended sign lines for the duration of, as well as guarded, humbucking coils.
So why don't you guitars? Guitars are notoriously overwhelmed by noise. Humbucking pickups are just an incomplete (though essential!) solution. The most obvious solution is to move your guitar collection to a balanced production, as being a microphone. The same strategy was published this 2001 patent application such as Shure Lavalier Microphone?