"Pink_isn't_well" wrote ...
Michael Conzo wrote :
Sounds mostly like he wants to have some 'fancy looking
pictures' to prove/disprove whatever his theory might be.

No. You could've read the previous postings before you write this,
couldn't you?

OK, then what ARE you trying to do? I didn't think Mr. Conzo's
characterization was that far from the mark. Sounds like all you need
is some way to balance your subwoofer, (and you never responded
to the obvious questions about setting the subwoofer level).

But then you got off on trying to actually measure the frequency
response without knowing what a huge can of worms it is and
how far in over your head you are.

If it were me, I would just play some pink noise and tune the
subwoofer level in-situ by ear. That is ultimately what counts,
after all.