8ft long SUB w/ 4-18" Obsidian/SI drivers

Replaced my bad amp with a new Behringer iNuke 3000 and now I'm rocking and rolling again. I still need another 3000 amp on the subs though. I had a great listening session tonight with the
Blue Man Group DVD, and a pipe organ CD. The sub does 16hz pedal notes very well even though it is tuned to 20hz, as there's some room gain in there too. Overall I'm very happy with the output and the sound quality of these drivers, a very good bargain in the world of DIY subs.

Finally did a response plot for my room today. I already knew that the room has a bump between 50-65hz when I've done these tests on my other previous subs, but I was happy to see that my -3db drop was at 16hz. The initial 20hz tuning frequency turned out to be a good design with the normal room gain added put me right where I wanted to be. I do listen to some pipe organ recordings with 16hz notes and they are quite nice already. The 6k watt Behringer iNuke amp is on its way, as now I'm clipping my 3K watt amp when I have the volume maxed out on the preamp.



Now I need to remove the Obsidian drivers this weekend and install some Stereo Integrity HT drivers in their place. I'll keep them in there until I find a buyer for this thing, so that I can make room for the next sub that will surpass this one in performance.