Last night I got everything finished up. Debbie and I carried the new sub into the room and placed it in the front right corner where the old sub used to be. I had been temporarily using the tempest in a small sealed box that was pretty flimsy. That said, the Tempest was impressive compared to my old Cerwin Vega. I knew the big ported enclosure would deepen the response but I wasn't sure that it would make a huge difference. I quickly hooked it up and set about picking some demo material I played a few CDs with low bass content, Enya's Watermark, Sarah McLaughlin (SP) Surfacing, and some pop stuff like Madonna's Music. The new sub sounded fine. Not boomy at all just very musical. I still need to fine tune the levels and double check the phasing but for a quick setup I was very pleased. Now for some movie fun. I decided to try the THX intro on TPM. The one where the blue ball explodes. On my Marantz I had the volume at about -15. Pretty loud with my 281s. Now let me tell you, when the ball exploded I was stunned. It was a different experience all together. More physical than aural. I could feel the concusion wave hit me. Debbie and Laura were in the living room upstairs and immediately came down asking what just happened. They said the room shook like an earthquake had hit. I decided to try it. I went up to the living room, closed the downstairs door and yelled for my daughter to play it again. I could just make out the beginning thunder as the storm around the ball grows. Then, wham!!! There was a glass of water on the coffee table in front of me and it acted just like the scene in Jerrasic Park. I was stunned at how much that impact moved the whole house. I could hear little things rattling all over the place. Back down in the entertainment room I ran the scene again and watched the power output display on my sub amp. With the peak hold on, it looked like it hit around 100 watts per channel. I am convinced that the last octave from 20 to 40 hz or even 15 to 30 is the key to being able to experience whatever is on just about any disk. I also played the trailer for Ice Age that is on Dr. DoLittle II. It is in Dolby Digital. Very Very Fun. When the ice cracks as the acorn is being driven in you feel it. I am amazed, simply amazed. I have no doubt that if there is bass on a disk, I'll hear it... I will hook up my software and laptop this weekend and do some measurements for real numbers. I just can't imagine what some of the silos with multi drivers that some of you have are capable of. I am sure I'll get used to this and may want more. For now, I'm delighted.