if you want i can draw something up for you tomorrow if i have the time,im assuming you are aiming for a really loud daily driver, but if you go with a design similar to your last box you can plug one port for daily drving ( having it tuned to something like 33hz) and then if you can more spl remove the port plug and the tuning will raise equaling more spl. hit me up on msn.

edit i should have read your post a bit better about the port plugs lol.

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