Sennheiser Ie 4 A electric guitar collection is actually similar to a powerful microphone coil. For many years, vibrant microphones have already been wired with the voice coil attached with the principal of the microphone's transformer, and not referenced to soil (‘floating'). The microphone's case is normally linked to the cable guard, which can be attached to the mike amplifier's soil (see Rane's site for more discussion).
By and big, energetic microphones are very calm products consequently of the mix of transformer isolation and healthy, floating indication lines throughout, in addition to protected, humbucking coils.
So why not guitars? Guitars are once plagued by noise. Humbucking pickups are just a partial (though essential!) solution. The obvious alternative is to float your guitar collection to a balanced production, as being a microphone. A similar idea was printed that 2001 patent software like this Sennheiser Ie 4?