Alesis Sr 18 A electric guitar collection is basically just like a dynamic mike coil. For many years, dynamic microphones have now been wired with the style coil mounted on the primary of the microphone's transformer, and perhaps not introduced to surface (‘floating'). The microphone's event is typically attached to the cable shield, which will be attached to the microphone amplifier's soil (see Rane's website for more discussion).
By and large, dynamic microphones are very quiet units consequently of the combination of transformer solitude and balanced, flying sign lines throughout, as well as shielded, humbucking coils.
Therefore why not guitars? Guitars are notoriously overwhelmed by noise. Humbucking pickups are merely a partial (though crucial!) solution. Well-known solution would be to float your guitar pickup to a balanced output, as being a microphone. The same idea was printed this 2001 patent software such as Alesis Sr 18?