Used Drum Kit A electric guitar collection is essentially much like a dynamic mike coil. For many years, active microphones have been wired with the voice coil attached with the primary of the microphone's transformer, and not called to surface (‘floating'). The microphone's event is normally attached to the wire guard, which can be connected to the microphone amplifier's soil (see Rane's website for more discussion).
By and big, energetic microphones are extremely quiet units consequently of the mix of transformer isolation and balanced, flying transmission lines throughout, in addition to guarded, humbucking coils.
Therefore why not guitars? Guitars are notoriously plagued by noise. Humbucking pickups are merely a partial (though essential!) solution. The most obvious solution is to move practicing the guitar collection to a healthy result, being a microphone. The same idea was published that 2001 patent request like this Used Drum Kit?