Hartke Bass Attack A guitar pickup is actually just like a powerful mike coil. For decades, vibrant microphones have already been wired with the voice coil mounted on the principal of the microphone's transformer, and not recommended to ground (‘floating'). The microphone's case is normally connected to the cable guard, which can be attached to the mike amplifier's soil (see Rane's website for more discussion).
By and big, powerful microphones are very calm products consequently of the mixture of transformer isolation and healthy, floating transmission lines for the duration of, along with guarded, humbucking coils.
Therefore you will want to instruments? Instruments are once plagued by noise. Humbucking pickups are just a partial (though essential!) solution. The most obvious option is always to move your guitar collection to a healthy output, being a microphone. An identical idea was printed this 2001 patent application such as Hartke Bass Attack?