Bass Trap help




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My room sorta looks like this with the total length 25'

Im getting a rather large peak at both 63 and 80hz using warble tones and a Radio Shack sound level meter. The right from the listener opens into a kitchen. Anyway. I bought 27-Owens Corning 703 2"x24"x48" panels. Surely this is enough material? Stacking the panels 3 deep for 6" deep panels, that gives me 9 panels at 24"x48". Ive been moving them around, first trying 2 in the front corners, 1 to each side of the speakers, 3 to the rear (dead behind and one to each side, and the lasy one the wall to the left of the listening position. Zero different as read before and after using my meter.

I dont understand.

Help
jim1961jr
Are you placing them flat on the wall? You may get better results putting them across the corner. If you can get a little space behind the panel (placing thick batting between the wall and the panels) the lower the frequency it will affect, my guess it that your panels are working on higher frequencies. Just a hunch.
Post removed 
Acoustic panels have very little effect below 100Hz a few dB is about all you can expect. Meanwhile room modes can easily be 15 dB or more. Straddle the panels across the corners. However you should hear a big improvement in the lower midrange.