What are ways to fix speaker dips in my speaker or audio room


I have recently hired an acoustic engineer and after a day of measuring room acoustics and he came back with what I needed to fix and one of my speakers dip at 54 HZ and would DSP help or a lot of bass traps in the frequency work better?
128x128shawarma
I seriously doubt you would find very many speakers if any that would match within 1db.  Any measurements in room and below 200hz are subject to room interactions.  Now if you were talking about a difference of 5db or more, it may or may not be beneficial to minimize that difference.
You are worrying about a non existent problem.
"You are worrying about a non existent problem"
I see a lot of that going on. 
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Help me out Shawarma.   Room dimensions will help.  Equipment and brands.  Windows, bare walls, tile or hardwood floors, sheetrock, rugs, drapes?   Can you hear or perceive the difference between speakers?