Electric Guitar Amp Hiss A best guitar pickup is actually similar to an energetic microphone coil. For decades, active microphones have now been wired with the style coil attached with the principal of the microphone's transformer, and maybe not called to soil (‘floating'). The microphone's situation is typically linked to the cable guard, which will be attached to the mike amplifier's soil (see Rane's web site for more discussion).
By and large, dynamic microphones are extremely quiet devices as a result of the mixture of transformer isolation and balanced, suspended indication lines throughout, in addition to shielded, humbucking coils.
Therefore why not guitars? Instruments are notoriously overwhelmed by noise. Humbucking pickups are just a partial (though important!) solution. The obvious answer would be to float the guitar pickup to a healthy output, as being a microphone. A similar idea was published this 2001 patent request like this Electric Guitar Amp Hiss?