Squier J Bass A best guitar pickup is actually just like a vibrant microphone coil. For decades, energetic microphones have already been sent with the voice coil attached with the principal of the microphone's transformer, and maybe not called to soil (‘floating'). The microphone's event is typically linked to the wire guard, that is linked to the microphone amplifier's soil (see Rane's website for more discussion).
By and large, powerful microphones are very calm devices consequently of the mix of transformer isolation and healthy, hanging transmission lines all through, in addition to guarded, humbucking coils.
Therefore why don't you guitars? Instruments are notoriously overwhelmed by noise. Humbucking pickups are only a partial (though essential!) solution. Well-known answer is always to float practicing the guitar pickup to a balanced production, as being a microphone. A similar thought was printed this 2001 patent request such as Squier J Bass?