What Guitar Did Bb King Play A best guitar collection is actually similar to an energetic mike coil. For decades, energetic microphones have been wired with the voice coil mounted on the principal of the microphone's transformer, and not introduced to soil (‘floating'). The microphone's situation is typically attached to the cable shield, which will be attached to the mike amplifier's floor (see Rane's website for more discussion).
By and large, energetic microphones are extremely quiet products as a result of the mixture of transformer solitude and balanced, floating transmission lines during, in addition to protected, humbucking coils.
Therefore why not guitars? Instruments are notoriously overwhelmed by noise. Humbucking pickups are only a partial (though important!) solution. The most obvious answer is always to move your guitar collection to a balanced productivity, being a microphone. A similar strategy was published this 2001 patent software such as What Guitar Did Bb King Play?