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krazykarl
08-05-2009, 07:00 PM
I used the RE site and came up with a good design. But the problem is I want it to be a double baffle. How much would it change the volume and tuning if I just doubled it while building it? The sub I'm using is a HDC312 and I want to flush mount it.

http://img9.imageshack.us/img9/4598/box4.png

basscort2009
08-05-2009, 07:04 PM
not enough to make a differance probly. to find exactly how much airspace it is just use the volume fomular. do the LxWxH and then divide by 1728 to find how many cubic ft it takes up. so like if it was 36 x .75 x 14 you would get 378 then divide by 1728 and get .218 so it would be less than a quarter of a cube.

SSS 18734
08-05-2009, 07:04 PM
Can you make it .75" deeper? Just attach a second baffle to the front... The .75" increase in port length isn't going to change the box audibly.

basscort2009
08-05-2009, 07:06 PM
Can you make it .75" deeper? Just attach a second baffle to the front... The .75" increase in port length isn't going to change the box audibly.

u could do this also. it wont changhe audibly but if you compete any at all this will make a differance in numbers, (maybe couple tenths)

t1990le
08-05-2009, 07:06 PM
Can you make it .75" deeper? Just attach a second baffle to the front... The .75" increase in port length isn't going to change the box audibly.

what he said lol

krazykarl
08-05-2009, 07:10 PM
Alright, well thats good to know.

One more thing, does anyone know the outside diameter of the hdc312?

basscort2009
08-05-2009, 07:11 PM
tape measure?

SSS 18734
08-05-2009, 07:15 PM
audioque.com?

krazykarl
08-05-2009, 07:17 PM
Ya, that would work. But I can't anywhere find the displacement of the hdc :confused:

basscort2009
08-05-2009, 07:18 PM
most subs displacements are close to .25 cubes. my dc level 5 15 takes up almost a quarter cube

krazykarl
08-05-2009, 07:22 PM
Thanks for all the help! Besides all the other stuff, hows my design look?

dappa5
08-05-2009, 11:22 PM
Thanks for all the help! Besides all the other stuff, hows my design look?
like a box from the RE calc that was what you were going for right??