help me on tuning please

[350zspl]

exterior dimensions


30" width
18" depth
15" height

3/4" MDF
1.5" baffle


2 x 4" aero ports 12" in length

1 driver 15" dd 9515g

what would the tunning be?

thanks

[y22kc]

Bassbox 6 pro says it would be 35hz or so. Depends on the wood being 3/4 in thick and displacement of the speaker