Keeley White Sands A guitar collection is essentially just like a powerful microphone coil. For many years, dynamic microphones have now been wired with the voice coil mounted on the principal of the microphone's transformer, and maybe not introduced to soil (‘floating'). The microphone's event is typically linked to the wire shield, which can be linked to the microphone amplifier's floor (see Rane's internet site for more discussion).
By and large, powerful microphones are very quiet devices consequently of the combination of transformer isolation and balanced, flying sign lines all through, in addition to shielded, humbucking coils.
So why not instruments? Instruments are notoriously plagued by noise. Humbucking pickups are just an incomplete (though crucial!) solution. The obvious option is to float your guitar collection to a balanced production, being a microphone. An identical thought was published this 2001 patent request such as Keeley White Sands?