newb box help

So I think I might be able to fit two 18" BL's @ the min. cubes of 5 per sub.

just curious if I'm calculating the port disp. right...

12-16" per foot, so I shot down the middle with 14", which gives me about 1/2 a cube per port, but somehow this doesn't seem big enough...

so how many cubes per sub for port?

thanks...

so 10 cubes total?

that'd mean 140 sq inches of port

what tuning frequency?

I'd say 31hz would be about ideal for 18's... no/yes?

I'd say 31hz would be about ideal for 18's... no/yes?

That'd work.

That gives port length of 29.5 inches.

Ignoring the displacement of the wood (will vary depending on how the port is situated), the port will take up 2.39 cubic feet

This gives you some idea how huge this box would need to be

ok cool, didn't know they had a free box calc. out there...

I played with the #'s a little, 44w X 25"d X 25" high, as thats about as big as I wan to go, and got 9.5 cubes, after sub disp. that leaves 9 cubes...need 10 min to do the 18". so I take a few more carefull measurements and see if I can squeeze another cube in there. if not then 15's i guess...

thanks man!