In the example note the two conductors: hot and cold (or + and -) are out of phase, moving in the opposite direction. Ground is not really needed for this to work, but typically used to provide a cleaner signal through use of a shield.
The noise on Hot and Cold is identical because it is being picked up along the length of the cable from airborne radiated sources. The preamp or source device sending the balanced signal generates the musical signal in both phases. What comes out of the transformer is a clean and perfect musical signal sans any noise or common signal.
While this is truly wonderful and something I highly recommend, is noise all that is common? No, depending on the type of circuit itself, we may be able to get even more advantages than just noise reduction.
To be continued.
Inside out
In the example note the two conductors: hot and cold (or + and -) are out of phase, moving in the opposite direction. Ground is not really needed for this to work, but typically used to provide a cleaner signal through use of a shield.
The noise on Hot and Cold is identical because it is being picked up along the length of the cable from airborne radiated sources. The preamp or source device sending the balanced signal generates the musical signal in both phases. What comes out of the transformer is a clean and perfect musical signal sans any noise or common signal.
While this is truly wonderful and something I highly recommend, is noise all that is common? No, depending on the type of circuit itself, we may be able to get even more advantages than just noise reduction.
To be continued.
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