If you were to model an analog equalizer…say something like the Manley Massive Passive, or that Bendeth EQ, or maybe a Pultech, what are the general stages you go through in developing it? Do you start with samples of the sound then reverse engineer an algorithm that matches? Do you start with a generic algorithm then tweak it to match the components? (I think Yamaha claims they model every circuit component in compressor, then put them all together).
So excluding plugs that are convolution based, what does a modeling process look like?