Champaign Music Store A guitar collection is essentially similar to a dynamic mike coil. For many years, powerful microphones have been sent with the voice coil mounted on the primary of the microphone's transformer, and not introduced to ground (‘floating'). The microphone's situation is usually connected to the cable guard, which can be connected to the mike amplifier's soil (see Rane's website for more discussion).
By and big, vibrant microphones are very quiet units as a result of the mix of transformer solitude and healthy, floating sign lines for the duration of, in addition to shielded, humbucking coils.
So why don't you guitars? Instruments are once plagued by noise. Humbucking pickups are only an incomplete (though important!) solution. The most obvious option would be to float your guitar pickup to a balanced output, as being a microphone. The same thought was printed this 2001 patent request like this Champaign Music Store?