Citronic PPX900 (1987) measured power with 4 ohm load (stereo mode)

Citronic PPX900 (1987),Made In UK with output famous Hitachi lateral mosfet transistors 2SK176 and 2SJ56 (3/3,in total 6 per chanels)!
This amplifier work at complementary AB class,sound realy nice!!!
For good sound AB class it's primary class after class A!!!!
This amplifier still uses all its original parts!

Output power / mains power measured with 4 Ohm resistive load,sine wave driven both channels (stereo) before clipping!

44,8 volts, 12,4 amperes, 100Hz : 555,52W RMS!!!! Mains power 1,817 kW

42,7 volts, 11,7 amperes, 50Hz : 499,59W RMS!!!! Mains power 1,778 kW

43,6 volts, 11,9 amperes, 40Hz : 518,84W RMS!!!! Mains power 1,812 kW

43,8 volts, 12 amperes, 30Hz : 525,6W RMS!!!! Mains power 1,825 kW

43,5 volts, 11,8 amperes, 20Hz : 513,3W RMS!!!! Mains power 1,793 kW

45,1 volts, 11,7 amperes, 10Hz : 527,67W RMS!!!! Mains power 1,804 kW

43,8 volts, 11,6 amperes, 400Hz : 508,08W RMS!!!! Mains power 1,744 kW

[ernstjan]

Nice test! I have this amp to and o what a beast! But how much rms at 8 ohms?

[ernstjan]

And do you have a schematic of this amp i cant find one/;