Designing Systems For Wireless Handheld Devices Is Called A best guitar collection is basically much like a powerful mike coil. For decades, dynamic microphones have been wired with the voice coil attached with the principal of the microphone's transformer, and not introduced to soil (‘floating'). The microphone's situation is usually connected to the wire guard, which can be linked to the mike amplifier's soil (see Rane's site for more discussion).
By and big, vibrant microphones are very calm devices consequently of the mixture of transformer isolation and balanced, hanging indication lines throughout, along with protected, humbucking coils.
Therefore why not instruments? Guitars are notoriously overwhelmed by noise. Humbucking pickups are merely a partial (though crucial!) solution. The obvious alternative is to float your guitar collection to a balanced output, just like a microphone. A similar strategy was published this 2001 patent software such as Designing Systems For Wireless Handheld Devices Is Called?