Metallica At T Park A best guitar collection is essentially just like an energetic mike coil. For many years, active microphones have now been wired with the style coil attached to the principal of the microphone's transformer, and not recommended to ground (‘floating'). The microphone's event is typically linked to the wire guard, that is connected to the mike amplifier's floor (see Rane's web site for more discussion).
By and large, active microphones are very calm products as a result of the mix of transformer solitude and balanced, hanging indication lines throughout, as well as protected, humbucking coils.
Therefore why don't you instruments? Guitars are notoriously plagued by noise. Humbucking pickups are only a partial (though crucial!) solution. The most obvious option would be to move your guitar pickup to a balanced production, being a microphone. An identical thought was published this 2001 patent request like this Metallica At T Park?