Hi Gustavo Castro ,
I'm sorry for bringing back a dead thread but I had a question about your explanation and Harry's suggestions.
Is this what a model of the system would look like?
Because, that is what the individual transfer functions of the INAMP and the HPA would look like. However, using the above model, I don't get the poles to be at 100/RC and 2kHz.
Any insights about where I might be going wrong on the model?
Thanks!