Guitar Amp Head Cabinet Empty A best guitar pickup is actually much like a vibrant mike coil. For decades, active microphones have now been wired with the voice coil attached with the primary of the microphone's transformer, and not introduced to ground (‘floating'). The microphone's situation is usually attached to the cable shield, which can be attached to the microphone amplifier's surface (see Rane's site for more discussion).
By and big, energetic microphones are extremely quiet devices consequently of the combination of transformer solitude and healthy, suspended sign lines during, in addition to protected, humbucking coils.
Therefore you will want to instruments? Instruments are notoriously affected by noise. Humbucking pickups are just a partial (though important!) solution. The obvious option is always to move the guitar collection to a balanced output, just like a microphone. A similar strategy was published this 2001 patent request such as Guitar Amp Head Cabinet Empty?