I had a REL Storm III sub to augment the low end of my Wilson WP7's and rolled them off at 30 Hz as I do with my JL Audio F113. IMO both subs do a great job on blending in with the WP7's, probably because I only use them to pressurize the room. The F113 has a lot more adjustments than the REL and needs them. I spent a lot of time adjusting crossover point, rolloff rate (I use 24db/octave), phase control, and then using the microphone to eliminate the highest room mode. The REL just seemed to blend in without much work. That being said, the F113 has a lot more bass impact. I never heard the Aerial sub so I cannot comment on it, sorry.
