Although seemingly counterintuitive to Ohm’s law, the unique PeakBank power supply performs as a regenerative four-quadrant power supply with fast tracking Power Factor Correction (FPC) to continuously deliver 4000 watts using typical source material. This operation allows the PM8500 amplifier to deliver a long duration of maximum power at all output channels from a standard outlet without amplifier shutdown or disturbing fuses and breakers on the AC mains feed.