G G Guitar Cases Australia A guitar pickup is essentially much like a dynamic mike coil. For decades, energetic microphones have now been wired with the voice coil attached with the principal of the microphone's transformer, and perhaps not recommended to ground (‘floating'). The microphone's situation is usually linked to the cable guard, which can be linked to the microphone amplifier's ground (see Rane's web site for more discussion).
By and big, dynamic microphones are extremely quiet devices as a result of the mix of transformer isolation and balanced, hanging indication lines during, along with guarded, humbucking coils.
Therefore why don't you guitars? Instruments are notoriously affected by noise. Humbucking pickups are only an incomplete (though essential!) solution. Well-known solution is to move the guitar pickup to a balanced productivity, being a microphone. An identical idea was published this 2001 patent request like this G G Guitar Cases Australia?