Watch Hot Rod A guitar collection is actually much like a powerful microphone coil. For decades, powerful microphones have been sent with the style coil mounted on the primary of the microphone's transformer, and perhaps not recommended to soil (‘floating'). The microphone's situation is normally linked to the cable shield, that will be attached to the mike amplifier's ground (see Rane's site for more discussion).
By and large, active microphones are very calm products as a result of the mixture of transformer isolation and healthy, suspended sign lines throughout, in addition to guarded, humbucking coils.
Therefore you will want to guitars? Guitars are notoriously plagued by noise. Humbucking pickups are only an incomplete (though crucial!) solution. The obvious alternative would be to move practicing the guitar pickup to a balanced production, as being a microphone. The same idea was printed this 2001 patent program such as Watch Hot Rod?