UPS just delivered my Tumult. As soon as I get home, I will open it up and put it in it's new home. Sure hope the wait will now payoff! This will be going in a 2.5 cu ft sealed enclosure powered by the HS500 amp. Since this is my first subwoofer, I don't have anything to compare it with. I want to thank everyone for providing their knowledge to those of us who are newbies in the DIY arena, especially Jack Gilvey, Brian Bunge and Tony Gomez. I have learned a tremendous amount amount about speakers over the past year. Many thanks to Kyle for his assistance with this project. I will be sure to post my thoughts about the sub in the near future and how it works with music and movies.