Guitar Center Albuquerque A best guitar collection is basically similar to a dynamic mike coil. For many years, powerful microphones have already been wired with the style coil attached to the primary of the microphone's transformer, and maybe not referenced to surface (‘floating'). The microphone's case is usually attached to the cable guard, that will be connected to the mike amplifier's surface (see Rane's website for more discussion).
By and large, active microphones are extremely quiet devices consequently of the combination of transformer isolation and healthy, floating sign lines throughout, in addition to shielded, humbucking coils.
So why not instruments? Guitars are notoriously affected by noise. Humbucking pickups are just a partial (though crucial!) solution. Well-known alternative is to float your guitar collection to a balanced output, being a microphone. The same thought was published this 2001 patent application such as Guitar Center Albuquerque?