Left Handed Acoustic Bass A electric guitar pickup is basically similar to a powerful mike coil. For decades, powerful microphones have now been wired with the voice coil attached with the primary of the microphone's transformer, and not recommended to soil (‘floating'). The microphone's situation is usually linked to the cable shield, which will be linked to the mike amplifier's floor (see Rane's site for more discussion).
By and big, vibrant microphones are extremely quiet products as a result of the mix of transformer isolation and balanced, flying sign lines all through, along with shielded, humbucking coils.
So why don't you instruments? Instruments are notoriously overwhelmed by noise. Humbucking pickups are just a partial (though important!) solution. The most obvious answer is to float practicing the guitar pickup to a healthy output, being a microphone. An identical strategy was printed that 2001 patent request such as Left Handed Acoustic Bass?