Dynamic Microphone Preamp Op Amp A best guitar collection is essentially similar to an energetic microphone coil. For decades, energetic microphones have now been wired with the style coil attached to the principal of the microphone's transformer, and perhaps not introduced to surface (‘floating'). The microphone's event is normally connected to the cable shield, which will be attached to the mike amplifier's soil (see Rane's website for more discussion).
By and large, powerful microphones are very quiet devices consequently of the combination of transformer isolation and balanced, suspended transmission lines for the duration of, as well as protected, humbucking coils.
So why don't you instruments? Instruments are once overwhelmed by noise. Humbucking pickups are merely a partial (though important!) solution. The obvious answer is to float your guitar pickup to a healthy production, being a microphone. A similar idea was printed this 2001 patent application such as Dynamic Microphone Preamp Op Amp?