Got the sub on Friday and you just can't appreciate the size of this thing until you unboxing it in your living room. I definately got the "WTF, is that really necessary" look from the wife....LOL. After trying a few different locations, I found the best spot. After some fine tuning with the YPAO and then an SPL meter, it was time to test it out. I used the pink noise tracks on the included demo disc. I can honestly say I have never experienced a sub that plays frequencies I can't hear but yet everything on the walls and shelves were shaking like hell. Very eerie to say the least. Movies are absolutely a whole new experience and music has so much more depth. I can't believe I lived with my old sub for so long. Never knew what a great sub could do. Thanks everyone for the feedback! Happy listening!