Hello all. Long-time lurker, first time poster.
So this weekend I sat down with my Ratshack Digital SPL, RoomEQ and my BFD that's been gathering dust on a shelf since I picked it up on eBay 2 years ago. Long story short, my laptop seems to hate RoomEQ, so I fell back on the "subtest" XLS and some 1/6th octave tones. Check it out:
These three measurements were for the left, right & center cushions of the sofa. The 63hz suckout in the "sweet spot" was mighty strange to hear. I placed my head there after running the measurement, and I could literally hear the null come and go moving my head side-to-side by 6". Don't know how worried I am about that one, but if I can get rid of it, I want to. That's where
I sit.
All in all, I'm pretty pleased with how things turned out just as they are. A bit depressed that I don't have more below 25hz, but I'll cope. Do I even bother with the BFD? I'm thinking "maybe", just to pull down the 50hz region a bit. Makes sense that there's a hump; my sub has an Le of 3.5mH and a peak there is common with high-inductance subs. Otherwise, I have the ability to place the sub directly behind the sofa. I know that, for higher frequencies, one can swamp room interactions by being extremely nearfield. Does the same thing apply for purely pistonic subwoofers?
Here's the room layout if anyone has bright ideas. Basement with a 7-1/2' ceiling. The left wall is a half-wall in the front half of the room and that "wall" to the right of the TV is actually a 25" high box that hides the water main. I wouldn't trust my 150LB sub not to shake the thing apart, so no putting it up there. :-)
Again, I think I'm actually doing fairly well right now as it is. But maybe you guys see something blatant that I've missed. Any help or ideas are greatly appreciated.
Thanks!