Powersoft technology proved to be a winner and many competitors are looking at PFC as the next frontier while customers are demanding Powersoft amplifiers for being really able to save energy preserving sound quality.
The following images show PFC at work: a constant current request without huge peaks and harmful generation of harmonics able to perturb the mains.
Note that mains RMS and Peak currents on the amplifier without PFC are respectively 1.5 and 2 times larger than on the Powersoft amplifier with PFC even if the two amplifiers have the same output power level. Also, the instantaneous power and the average power are considerably higher.
Here summarized are the advantages related to the use of the PFC in Powersoft amplifiers: