Digital Multitrack Recorder A electric guitar collection is basically similar to a vibrant mike coil. For decades, dynamic microphones have now been wired with the style coil mounted on the principal of the microphone's transformer, and perhaps not recommended to soil (‘floating'). The microphone's case is typically linked to the cable shield, that is linked to the mike amplifier's soil (see Rane's website for more discussion).
By and large, active microphones are very quiet units consequently of the combination of transformer isolation and healthy, suspended transmission lines through the duration of, in addition to shielded, humbucking coils.
So why not guitars? Guitars are once plagued by noise. Humbucking pickups are only an incomplete (though crucial!) solution. Well-known answer is always to move the guitar collection to a healthy productivity, being a microphone. The same strategy was printed this 2001 patent request like this Digital Multitrack Recorder?