Tascam Dm 3200 A electric guitar collection is actually much like a vibrant mike coil. For many years, energetic microphones have already been sent with the voice coil attached to the primary of the microphone's transformer, and not recommended to surface (‘floating'). The microphone's situation is typically linked to the cable guard, which is attached to the microphone amplifier's floor (see Rane's site for more discussion).
By and big, powerful microphones are very quiet units as a result of the combination of transformer isolation and healthy, suspended transmission lines during, as well as shielded, humbucking coils.
Therefore why not instruments? Instruments are notoriously affected by noise. Humbucking pickups are merely a partial (though essential!) solution. The most obvious solution is to float your guitar pickup to a balanced output, being a microphone. A similar thought was published this 2001 patent request like this Tascam Dm 3200?