I've spent the weekend becaming friends with my new Behringer Feedback Destroyer. I'm using it with an attic IB with four AV15's powered by a Crown Pro Amp (1200 watts in my configuration). I've included the before and after graph. The values do not represent peak output. I was aiming for a "house curve" with ~ 7db rise in the low end. As you can see the BFD did a good job with the peaks. I am left with a couple cancellation dips that are immune to equalization. I am little surprised at their posirion given the dimensions of my room (7.5 x 11.5 x 17.7 ft). I can't tell you how it really sounds since I've only used test tones. My audio HT is in pieces and my PJ is in for repair so DVD sound track are problematic at the moment.
