Mini Audio Mixer A best guitar collection is actually much like a vibrant microphone coil. For decades, energetic microphones have been sent with the voice coil mounted on the principal of the microphone's transformer, and maybe not introduced to surface (‘floating'). The microphone's case is usually linked to the cable shield, that will be linked to the mike amplifier's soil (see Rane's internet site for more discussion).
By and big, dynamic microphones are very calm units as a result of the combination of transformer isolation and healthy, floating transmission lines through the duration of, as well as shielded, humbucking coils.
Therefore why don't you instruments? Guitars are notoriously plagued by noise. Humbucking pickups are only an incomplete (though important!) solution. The most obvious answer is to move the guitar pickup to a balanced production, just like a microphone. A similar idea was printed this 2001 patent request like this Mini Audio Mixer?