What is Dual Balanced Pure Power?
Using balanced power solves ground loop problems because it takes its ground from one source, hence no potential difference. You can do this yourself simply by taking all power from one spot. If your equipment “leaks” to the ground, then balanced power might be helpful. Balanced power systems have been most commonly used with the 120V mains power used in USA. In normal wiring there is one neutral wire which is always at (almost) ground potential and other wire which carries the 12V AC voltage. There is also a separate safety ground wire. In balanced power there are two out of phase 60V lines rather than normal 120V and neutral. The voltage difference between those out of phase 60V lines is 120V, so the equipments will get full 120V between their power input pins. The balanced power is generated from normal AC voltage by using an isolation transformer with centre-tapped 120V output and the centre-tap of the output is grounded.
