The PLiXiR Elite BDC balanced DC power supply is designed to reduce all the noise types present in a DC power supply. Upon deep studies it is apparent that traditional DC power supply circuit cannot eliminate them all.  These include Ground loop current and diode rectification/pollution noise. 

The PLiXiR ground-up approach begins with a balanced AC power design, along with a two-stage voltage regulation consisting of an open-loop first-stage pre-regulator and a close-loop feedback second stage.

Their unique balanced AC power circuit effectively removes ground loop noise and reduces the diode noise. 

The first stage pre-regulation filters the bulk of the noise, specifically the high-frequency noise, and the heat from the second stage voltage regulator. The 2 stage regulation design as a "gate" to prevent the downstream noise from crossing back to the AC power hands.