Sabian Aax Cymbal A electric guitar collection is essentially similar to a powerful mike coil. For decades, active microphones have been wired with the voice coil attached with the primary of the microphone's transformer, and perhaps not introduced to soil (‘floating'). The microphone's case is usually attached to the cable shield, which is attached to the mike amplifier's surface (see Rane's internet site for more discussion).
By and large, active microphones are extremely quiet products consequently of the mixture of transformer isolation and healthy, flying transmission lines throughout, in addition to shielded, humbucking coils.
So why don't you instruments? Guitars are notoriously overwhelmed by noise. Humbucking pickups are merely a partial (though essential!) solution. The most obvious option is always to float the guitar collection to a balanced production, being a microphone. An identical strategy was published that 2001 patent application such as Sabian Aax Cymbal?