Very nice looking setup! Many congrats.
I wonder if you're localizing the bass up front now because you have the new Para mains and you have them crossed over at 40 Hz.
But I'm with others, your principle system outclasses your sub by a mile. Very nice, as I said, but could be improved with a little more subwoofer quality. I'll ditto all the other advice, as well. Good recommendations by these folks. If you could move the mains outward and forward a tad and get the sub out of that little cubbyhole....