Phono preamplifier with separate power supply.
This Jadis includes an MM and MC phono preamplifier that uses three ECC83 for MM and 2 6DJ8 for the MC stage.
As for the JPS2, its specific power supply recreates a voltage for the module with a 80 Hz frequency in order to avoid problems that can occur due to the 50 or 60 Hz frequency from the mains supply. The high voltage is regulated by two tubes: 1 x EF86 and 1 x EL84.