Need a little help with a speaker build

Thank you
the measurements were taken outside in front of the garage at 1 meter - adding fill and turning the speaker on it side on saw horses had little effect.


What you are saying is I have a resonance that is cancelling the bass at about 150hz from the port? Can I add a stub in to lengthen the line? I have a brace from top to bottom from side to side that the bottom half could easily be closed off. I read thru some of the thread but I think it is over my head. extending the port helps the dip but the bass is already light and making it deeper but less does not seem like a good ideal the room may also help me I had a boost in that area with the small thors.
 

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thank you for all the help. I wanted to wrap it up. I will continue with speaker placement work but overall they sound pretty good. I think the 40hz was ambitious on seas part for the nextels I ended with removing the port and just using the 3/4" hole
 

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