For the record... level match the two subs and equalize them together. It is next to impossible to equalize two subs individually... it just does not work and I have yet to see anyone do it successfully. You listen to them both at the same time... if you measure them separately, you will not be measuring what you are really listening to and the response will not be the same - no way it can be.
I have three subs and when I did equalize them, I equalized them all together... works wonderfully. When I had two subs, whether symmetrical or not, I equalized them together (and yes I moved them religiously and equalized them - I was a testing fool to say the least)... it worked wonderfully and is very simple to do. No reason to make it complicated.
Level match, measure both, equalize both and it is flawless. I have done it over and over and over in numerous setups and it works every time. If you think about it, it makes perfect sense why it works.
