Sure. Which was the point of my measurement. Comparing my original hst’s to the new eminence, in my room. Maybe not the most helpful measurements for this thread, but it means something to me. I changed nothing between the two, just the drivers. And I saw what I wanted. The difference between the two. With all of my subs running, fronts, rears, and nearfield, the response is much better/flatter.Those are room reflections that you've measured.
Look at any data-bass graph of any driver. No driver has such a variance, almost all drivers are dead flat 100hz if not 2-300hz.
I'm not saying the 21 isn't better, but that's not what you have captured/graphed here.