Line 6 Stagescape A guitar pickup is essentially similar to a dynamic microphone coil. For many years, active microphones have now been wired with the voice coil attached to the primary of the microphone's transformer, and perhaps not introduced to floor (‘floating'). The microphone's case is usually linked to the cable shield, which will be attached to the mike amplifier's floor (see Rane's website for more discussion).
By and big, dynamic microphones are very quiet units as a result of the mixture of transformer isolation and balanced, flying sign lines during, along with protected, humbucking coils.
Therefore you will want to instruments? Guitars are notoriously plagued by noise. Humbucking pickups are just a partial (though essential!) solution. The obvious answer is to move practicing the guitar pickup to a healthy production, just like a microphone. A similar idea was published this 2001 patent application like this Line 6 Stagescape?