Thnak you very much Sir Rvalente!
Let me post a similar application schemetic where user wanted to do some thing !
This application is for 400W, user said " I have connected additional parallel resistors to R117A, R118A, R17A, because amp was clipping, when power supply was circa 2x35V, is possible that leads of that resistors was to long?"

Now lets see other ( attached 2)
The main part of this protection circuit is a transistor FET which is connected in the power supply branch amplifier integrated circuit IRS2092. When applying a positive voltage to the control electrode of the transistor, the ground power supply voltage and the comparator halts the modulation process. The transistor FET is switched on the circuit that brings together a number of protections. One of them is check the power supply, which detects whether the supply voltage is in the range of 68 to 100 volts. If this the condition is not met, the class d protection will react. Additional protection is temperature. Circuit controls the voltage on the thermistor, which is located on the heatsink of the power switching Mosfet. Last class d amplifier protection detects the amplified audio signal at the output of the amplifier and responds when congestion or limitation.
Lets disscuss how we can adapt my requirement !