Yep, the Behringer is for the subs. It's an iNuke 3000DSP. The subs are Dayton Audio Ultimax 15". I used Dayton's recommendation of a 6ft3 ported box with 6 lbs of polyfill and just doubled it since both subs were going in the same box. I went with their recommendation as well with tuning it to 18hz and used Unibox to figure out the length of the port due to the changes I made. I haven't insulated the ceiling in the room yet so these results hopefully won't be typical, but I was watching Jurassic Park 3D with the kids (HT is in basement) while my wife was in bed (2nd floor bedroom) and when the T-Rex appeared the first time and roared she came down and told me to turn it down because she heard it from the bedroom and felt the bed vibrate. :-D
Obviously I'll lower the bass level when I calibrate everything, but it's new so I had to play with it and see what it could do. Lol.
