Bass traps? (to solve a suck out)

I have a big suck out from 46hz to 60hz which at max xuck out is -15db with a correct meter calibration and measurement software that I just verified last night.
When I move the SPL around even a foot or two it changes everything but the suck out cant be cured to any huge degree so I am curious as to possible solutions.
I think if nothing else I will install my Behringer and use it to give me a 6db gain at 50hz as this is closest frequncy I can manipulate and 6db should be ok for my amp, I bi-amp so I wont add any sonic signature of real consiquence with this limited to only the bass amp.
I strongly advise folks to measure room even if they may not like what they see, use REW (Room Eq Wizzard) software which is free at Hometheatershack.com along with your SPL meter which is calibrated and compensated for within this program. It is my strong belief that most have serious issues with the room they dont even know exist and they only logical resistance to taking advantage of this program is related directly to the fragile ego of many Audiophiles.....finding out the Emperor has no clothes isnt fun but is needed to get to the performance we all strive for.

No one note bass at one point I am down about 13db so its there just not flat but not ideal for sure, and I never said to myself it doesnt sound right but the seating and speaker positiion are both new so maybe I could trim that a bit but I know not completely. With one note bass wouldnt that would be more of an issue with peaks masking things right? I know its my room but have only been here in new house for a few months so I knew before I even did the test that it was highly impossible that things would be perfect, its a double edged sword to know of the issues, one hand being it ofcourse it stinks to see you have more work to do then you planned but its great to atleast know the issue and have the ability to try to change things. Tomorrow I am going to get back to measuring and will have help to move things around so I hope to trim that enough that I can insert Behringer into my bass amp and electronically raise the dip. Having a bi-amp system is perfect for this.

I dont run a sub as I run speakers that have usable bass to 16HZ but I may try to add my sub to fill in suck out if nothing else works (Ihave an HSU Research used for just HT currently). Tonight I am gonna dig back into the room and measurements and will report results later...wish me luck.

one improvement has been achieved as I found one speakers woofers out of phase so it is much better but not as ideal as I hope for. Upon discovering the speaker was internally out of phase now I have a new noticable problem, the bass is behind me and to the sides but at my seat it is way down so again I am lost. I suppose bass traps behind me in corners will tame that but suspect it may further steal bass from my sweetspot.......signed confused and bewildered

Yes you did see a sub in original post, I was adding my problems to the thread as I have same issue. Sorry if I hijacked things.

Shadorne, how much is it to do the needed treatments with the Mini-Traps?

Thanks for allowing me to get info in this thread and all who tried to help.