enclosure phasing help plus box build pictures

[myjaja 10+ year member]

Well, this is the enclosure I talked about before with the phasing issues. Its tuned to around 34 hz and no doubt Im doing over 150 with it. Lots and lots of air pressure. lol

The problem here is the phasing. The subs and port are facing inside the cabin of my 96 honda accord. I have the box pushed all the way back towards the trunk and I even added foam, dynamat and even some wood to help seal up the back. It still hits harder with the trunk open. Does anyone have any ideas at how to seal the back so air travel doesnt get behind the box?

I just started adding random pieces of wood behind the box to see if it helps. The trunk lid is not even, so I tried layering the wood to match the trunk lid.

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Now to the main part...

View attachment 26531513View attachment 26531517View attachment 26531512View attachment 26531511 Anyone have any ideas? thanks

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[myjaja 10+ year member]

anyone have ideas at how to seal the back?