Blue Sky Reverb A guitar pickup is essentially just like a powerful mike coil. For many years, active microphones have already been wired with the style coil attached with the principal of the microphone's transformer, and maybe not referenced to soil (‘floating'). The microphone's case is typically connected to the cable guard, that is attached to the microphone amplifier's ground (see Rane's website for more discussion).
By and large, vibrant microphones are very quiet devices consequently of the mix of transformer solitude and balanced, floating indication lines throughout, as well as shielded, humbucking coils.
Therefore you will want to guitars? Instruments are once overwhelmed by noise. Humbucking pickups are only a partial (though important!) solution. Well-known answer would be to float the guitar pickup to a healthy output, as being a microphone. An identical thought was published this 2001 patent application like this Blue Sky Reverb?