Help with double baffle

[krazykarl 10+ year member]

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

Click to read more...

 

[basscort2009 5,000+ posts]

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 5,000+ posts]

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 5,000+ posts]

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 10+ year member]

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 10+ year member]

Alright, well thats good to know.

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

 

[basscort2009 5,000+ posts]

tape measure?

 

[SSS 18734 5,000+ posts]

audioque.com?

 

[krazykarl 10+ year member]

Ya, that would work. But I can't anywhere find the displacement of the hdc //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[basscort2009 5,000+ posts]

most subs displacements are close to .25 cubes. my dc level 5 15 takes up almost a quarter cube

 

[krazykarl 10+ year member]

Thanks for all the help! Besides all the other stuff, hows my design look?

 

[dappa5 10+ year member]

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??