Digital Audio Mixer Cheap A best guitar collection is essentially much like a powerful microphone coil. For many years, powerful microphones have now been wired with the voice coil mounted on the primary of the microphone's transformer, and not recommended to soil (‘floating'). The microphone's situation is typically attached to the wire guard, that will be connected to the mike amplifier's soil (see Rane's site for more discussion).
By and big, energetic microphones are very quiet devices consequently of the combination of transformer isolation and healthy, floating sign lines during, as well as guarded, humbucking coils.
Therefore why don't you instruments? Instruments are once plagued by noise. Humbucking pickups are just an incomplete (though essential!) solution. Well-known option is to move your guitar pickup to a balanced output, just like a microphone. The same idea was published this 2001 patent program such as Digital Audio Mixer Cheap?