acoustic box with different woofers

Hi everyone;

I would like to know if anyone knows how I can see the frequency response of a speaker with 2 or more woofers of different models and different Thiele-small parameters.

They told me that I could calculate the Vb of the box by averaging the Fs, Qts and Vas parameters of all the woofers, and use those averages, and I already did it, but now I want to see the response that the box would have