Jazz Bass Oder Stingray A best guitar pickup is actually just like a vibrant mike coil. For many years, powerful microphones have been sent with the style coil attached to the principal of the microphone's transformer, and maybe not referenced to ground (‘floating'). The microphone's case is typically attached to the wire shield, which will be linked to the microphone amplifier's floor (see Rane's site for more discussion).
By and big, powerful microphones are extremely calm products consequently of the mixture of transformer isolation and healthy, flying indication lines throughout, along with protected, humbucking coils.
So why don't you instruments? Instruments are notoriously overwhelmed by noise. Humbucking pickups are just an incomplete (though crucial!) solution. Well-known alternative is always to move the guitar pickup to a balanced production, as being a microphone. An identical idea was published that 2001 patent request like this Jazz Bass Oder Stingray?