one of my speakers dip at 54 HZ and would DSP helpThat is due to the speaker/room interaction. Boosting at that frequency would not fix the problem and could lead to driver damage due to over excursion. Move the speaker or your listening position to minimize the issue. The acoustic engineer should have been able to tell you this and point you in the right direction.
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?