Oscar Schmidt Acoustic Guitar A guitar collection is essentially much like an energetic mike coil. For decades, active microphones have now been sent with the style coil attached to the principal of the microphone's transformer, and perhaps not recommended to surface (‘floating'). The microphone's situation is typically attached to the cable guard, which will be attached to the mike amplifier's floor (see Rane's internet site for more discussion).
By and large, active microphones are extremely quiet products as a result of the combination of transformer isolation and healthy, floating transmission lines all through, along with protected, humbucking coils.
So why don't you guitars? Guitars are once plagued by noise. Humbucking pickups are merely a partial (though crucial!) solution. The obvious answer would be to move the guitar pickup to a balanced production, as being a microphone. An identical strategy was published that 2001 patent application such as Oscar Schmidt Acoustic Guitar?