Today's Audio Final Amps
are normally still equipped with traditional toroid transformer with rectifier and
capacitor battery. This is a generator for a 100 Hz hum in the supply voltage of the
power amplifier. Considering also the CE test and the suitability this is not a brilliant solution.
Better Final Stages
are already equipped with switched mode power supplies. They serve, however, to often as replacement for
toroid transformer and thus just for show. The rectification of the mains voltage is carried out via rectifiers and
capacitor battery with the known disadvantages. A power conditioner is not realized here.
is known to us which makes the effort to use a real PFC power supply in his
power amplifiers. It is the company named Halcro. The solution is, however, some thing like a "One-cylinder".