Electro Harmonix Pulsar A guitar collection is essentially much like a vibrant microphone coil. For decades, vibrant microphones have already been sent with the voice coil mounted on the principal of the microphone's transformer, and maybe not referenced to surface (‘floating'). The microphone's event is normally attached to the cable guard, which will be attached to the mike amplifier's ground (see Rane's internet site for more discussion).
By and big, energetic microphones are very quiet devices consequently of the mix of transformer isolation and balanced, suspended sign lines during, along with protected, humbucking coils.
Therefore why not instruments? Guitars are notoriously plagued by noise. Humbucking pickups are merely an incomplete (though important!) solution. The obvious answer is to move your guitar pickup to a balanced production, just like a microphone. The same idea was published that 2001 patent application such as Electro Harmonix Pulsar?