Congrats on the new purchase. I agree a good sub makes a world of difference to the entire experience.

I trust you have the sub calibrated with the rest of the speakers? Also the sub crawl may have revealed the most loud place for the sub and the best place for the sub. That spot could be accentuating a hump in the frequency. Try the crawl again and look for the smoothest spot and not the loudest spot.


Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70