Digital Mixer Studio A best guitar pickup is basically similar to a dynamic mike coil. For many years, active microphones have now been sent with the voice coil mounted on the primary of the microphone's transformer, and perhaps not introduced to soil (‘floating'). The microphone's situation is typically linked to the cable shield, which can be attached to the mike amplifier's soil (see Rane's web site for more discussion).
By and big, powerful microphones are extremely quiet products consequently of the mix of transformer isolation and balanced, hanging indication lines all through, in addition to protected, humbucking coils.
Therefore why don't you instruments? Guitars are notoriously affected by noise. Humbucking pickups are merely an incomplete (though important!) solution. The obvious solution would be to move practicing the guitar pickup to a balanced production, just like a microphone. The same thought was printed this 2001 patent application like this Digital Mixer Studio?