Apollo Twin Thunderbolt A guitar pickup is essentially much like a vibrant mike coil. For many years, dynamic microphones have now been sent with the voice coil attached to the principal of the microphone's transformer, and perhaps not called to soil (‘floating'). The microphone's situation is usually connected to the cable shield, that will be attached to the mike amplifier's floor (see Rane's internet site for more discussion).
By and big, active microphones are extremely quiet devices as a result of the mix of transformer solitude and balanced, floating sign lines during, in addition to shielded, humbucking coils.
Therefore why don't you guitars? Instruments are once overwhelmed by noise. Humbucking pickups are just an incomplete (though important!) solution. Well-known answer is to float the guitar collection to a healthy production, just like a microphone. A similar strategy was published this 2001 patent application such as Apollo Twin Thunderbolt?