Lancaster Music Store A best guitar collection is essentially much like a powerful microphone coil. For decades, powerful microphones have already been sent with the voice coil mounted on the primary of the microphone's transformer, and maybe not called to ground (‘floating'). The microphone's case is normally attached to the wire shield, that is linked to the mike amplifier's floor (see Rane's website for more discussion).
By and big, vibrant microphones are very quiet devices as a result of the mix of transformer isolation and healthy, hanging transmission lines during, as well as protected, humbucking coils.
Therefore why not instruments? Instruments are once plagued by noise. Humbucking pickups are merely an incomplete (though crucial!) solution. The most obvious answer would be to float your guitar pickup to a healthy output, being a microphone. The same idea was published that 2001 patent application such as Lancaster Music Store?