I thought you had buttkickers?
I do. Well, technically they are Bass Shakers (different brand LOL). They are really helping me in delaying anything else subwoofer wise and I really do find them as a quick fix.
Who knew that two large, 4cuft subs later and I would just want more???
If I added a sealed, I was thinking something like a sealed 4cuft box and a massive 18" sub as it would fit perfectly under my equipment rack (I would have to secure things down a bit though.
Right now I would get better bang out of Atmos, but I always wondered about adding a sealed sub to the mix and thought that I would ask.