Black Sabbath Msg Tickets A best guitar collection is actually just like a dynamic microphone coil. For many years, active microphones have now been sent with the voice coil mounted on the primary of the microphone's transformer, and not recommended to ground (‘floating'). The microphone's situation is usually linked to the cable shield, that will be attached to the mike amplifier's soil (see Rane's site for more discussion).
By and large, active microphones are extremely quiet devices as a result of the combination of transformer solitude and balanced, flying indication lines throughout, along with shielded, humbucking coils.
So why not instruments? Instruments are notoriously overwhelmed by noise. Humbucking pickups are just an incomplete (though crucial!) solution. The obvious solution would be to float the guitar collection to a balanced productivity, as being a microphone. A similar idea was published this 2001 patent application such as Black Sabbath Msg Tickets?