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straight to the problem: I want to use VI limiter protection for the audio amplifier output.

Here is a basic configuration:

<code>sound-au.com/vi.htm</code> (Picked from: sound-au.com/vi.htm)

As I understand it, using a resistor to make the bias connected directly to the power rail creates noise. (82k resistors in the image)

Then, is another type of VI limiter, with the recalculated resistance and grounded.

enter image description here

Now, knowing the voltage of the supply branches, knowing the maximum current and dissipable power of the SOA, is there any specific formula to calculate the resistances of the limiter?

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