Just wondered who’s using subs with their Aerius and what make and models you’re using. What kind of results are you getting? I have a medium size room and would rather a small pair than something that stands out too much.
I had Aerius at one time, combined with smaller subs from SVS and Velodyne. As the years went by, the Aerius was replaced with Aeons and larger SVS subs. You would be well served to purchase a pair of SVS SB2000s or their larger offerings.