Seek AGC circuit with low distortion for subwoofer!

[GPE]

Superior,

I get into knots these days, and can not sleep very well, just because of the AGC circuit.

I was planning to design a subwoofer product with high input sensitivity and low distortion.

In the process of design, i meet a problem distortion is unacceptable when enhance input sensitivity.

Therefore, I would like to seek a kind of AGC circuit with low distortion to settle the difficult problem just for me.

Thanks!

 

[Jonathan Bright]

With AGC you might get a better response from people if you posted this question in the "speaker" or "solid state" section.