Nuance, How is your setup configured? I'm pretty impressed at how effectively you smoothed out your frequency peak. Could you give me a bit of background on your system such as, what is PEQ, and how do you incorporate the sub into your 2 channel rig?
Thanks, Garth
Garth,
I run dual 15" subwoofers, but currently they are both stacked in the front right corner. PEQ is parametric equalization, which is applied only to my subwoofers via a Behringer 1124p (BFD). The reason I am able to do this is because my preamp has a subwoofer output (dual mono's, actually). I have been studying room acoustics and their effect on sound for a while, so when I purchased my preamp having HT Bypass and a subwoofer output was a requirement. Otherwise using something like a Velodyne SMS-1 would work, as it has a built in high pass set at 80Hz.
I used the BFD to apply three filters and pull down the peaks I had in my room. My main peak was at 50Hz or so, and it was quite large, but easily smoothed using PEQ.
Another way to smooth the response below the crossover is to use multiple subwoofers. Using three or more can help achieve results like I have, but sometimes without the need to actually apply EQ. It all depends on your room and your configuration.
Having the ability to adjust phase and even set individual crossover points and delays for the subwoofer(s) will help even more. Something like the Behringer DCX2496 would work perfectly for that. Achieving the perfect blend isn't exactly easy, but its not as difficult as you'd think. It would only take a few hours on a weekend, and the results would be well worth the time spent in my opinion.
Hope that helps. Feel free to fire away if I haven't answered all your questions.
P.S. Here is TJHUB's in-room response. He was able to achieve a perfect blend (I've heard it), and it took even less time or EQ filters than it did for me. Like I said, its not that difficult.