can someone help me to see if my box was built right?

[highwater]

I had a ported box built for two sundown ev2 12s. And I'm just curious if anyone can tell if the dimensions and port size seem right. The box is 30.25w x 14.25h x 18d. Port is 2inch wide and 16 deep. I've heard this place did a good job. But the last time I had a real professional build me a box. The port was much deeper and wider. I've fell out of the sub gane since then and not really sure about this stuff anymore. Any help would be much appreciated

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[germanyt 10+ year member]

I didn't do the math myself but I'm getting 2.97 cubes tuned to a very low 24hz and only 8 Sq inches of port per cube. The port if it were 1 inch wider would make 2.7 cubes at 30hz and 12.75 Sq inches port per cube. That would be much better.

 

[highwater]

Thanks a lot for the hel man. But ugh. I knew it didn't seem right. They did tell me they tuned it pretty low because of my trunk space or something but they didn't say that low. And they told me it was 3.5 cutbic feet total. That's what i get for not know this stuff before hand