notw

hey there.. i have made some mistakes on my box and now i am attempting to fix it. i need to know the displacement of an aq hdc3 15. side note: my box is unintentionally tuned at 30hz.. re-tuning will be at about 38hz.. will i hear a noticeable difference in audible sound after the re-tune??

Never mind i did the calculation... it is approximately .51cuft. thanks.