Intrigued by the theory of balanced power and the swift kick to harmonics generated by individual audio components, I built a balanced supply from industrial transformers, and ran this supply as a separate feed to the audio system.
The effects were immediate, with tightening of bass and lifting details, especially on quiet track transistions. Timbre hasn't changed, nor should it, but the low level decays like a piano fading out are very impressive. I lived with the system for a few months to give it some time, but I can't look back now after using a variety of cleaning AC tools that really are hit and miss inluding isolation transformers, Monster power conditioners.... I am so impressed with balanced power, I have on order and Equi=tech unit should arrive shortly.
I can measure from the earth pin of the power supply to any chassis, RCA connector, fixing screw on my audio system, and it reads 0.000V AC. No potential difference, no noise, no problem! Balanced power creates a clean earth. Your components can make as much song and dance as they like on the AC side as far as generating harmonics, reactive currents, conducted noises from SMPS, they end up on the earth and cancel out. Mathematics is very difficult to prove wrong.
Am intrigued by the drawing a few posts back stating that a disadvantage to using balanced power requires a GFCI. Umm, if you use an isolation transformer, you still need a GFCI, and in many countries GFCI devices are mandatory for the whole house/apartment/plant where you can plug something in to the wall.
