Very powerful MOSFIT 400 amplifier.
Specifications:
Maximum power output when used as a broadband amplifier:
UM MOSFIT 100 - 100W
UM MOSFIT 200 - 200W
UM MOSFIT 300 - 300W
UM MOSFIT 400 - 400W
Maximum power output when used as a subwoofer amplifier:
UM MOSFIT 100 - 120W
UM MOSFIT 200 - 240W
UM MOSFIT 300 - 360W
UM MOSFIT 400 - 480W
Supply voltage ± 35 ... ± 80 V
THD for a load of 4 Ohms and 90% of the maximum output power of not more than 0.02%
THD for a load of 8 ohms and 90% of the maximum output power of not more than 0.01%
Recommended quiescent current 35 ... 45 mA
Coffee gain 33 dB
Powerful field effect transistors in the end stage should be installed on a cooling radiator. In this case, do not forget to first apply heat-conducting paste to the transistor substrate.
PCB circuit reference