So it didn't take long you see..... You have it very close to flat now so two things to consider:\n\n1) Any further improvement for even 0.5 dB peak to peak overall will take you 10 to 100X longer, just an educated guess.\n\n2) You won't be able to tell a difference between +\/- 1.0 dB and +\/- 2.5 dB in the 20-100 Hz range if you are human.\n\n3) Try and create your "house" curve, or just bump you subwoofer level(s) by 2 dB and see if that sounds good enough to me.\n\nI tried to tilt the low end up per Dr. Olive and Dr. Toole's finding that most people don't prefer flat, but a gradual rise towards the low end. Well now I know I am definitely not in the "most" group as I seem to prefer the flat curve though I always use DEQ if I listen to levels well below "ref". If I turn the volume to even just -10--15, I have to turn DEQ off otherwise someone in he house will want to kill me anyway.\n\nSo 3) is probably something that you should just try. The good thing with the App is that you can save as many versions as you practically would want\/need.\n\n\nRight now I've got the subs 2 dB hot and that pretty much creates the house curve for me. It sounds pretty good and when I tried to get things better up to 200hz, it didn't make things better really. I'm going to stick with what I have now since it's as good as I could get. Once I get the other subs in place I'll get back to it.\n\nThanks again for the help.