Yamaha Hs7 White A guitar collection is basically similar to a vibrant mike coil. For many years, active microphones have been wired with the voice coil attached with the primary of the microphone's transformer, and not called to ground (‘floating'). The microphone's situation is normally attached to the cable shield, which is connected to the mike amplifier's floor (see Rane's web site for more discussion).
By and large, vibrant microphones are very quiet products as a result of the mix of transformer isolation and balanced, suspended sign lines during, as well as protected, humbucking coils.
So why not instruments? Guitars are notoriously affected by noise. Humbucking pickups are merely an incomplete (though crucial!) solution. The most obvious solution is always to move your guitar pickup to a balanced result, as being a microphone. An identical strategy was printed that 2001 patent application such as Yamaha Hs7 White?