box for 2 15" fi btl fully loaded

[latorgator 0]

I am going to be building a box for my 2 15" btl fully loaded, I am curious wat of the two would be the best and how big should i cut/make the port, Also let me know if I mite need to make the box a lil bigger. ( i am also using 3/4 inch mdf) And should I have a baffle in between the subs or would one large box be best?

Box 1

height 19"

width 39.5"

depth 23"

Box 2

height 16"

width 39"

depth 35"

Any help would be appreciated.

[jcarter1885 995]

I am going to be building a box for my 2 15" btl fully loaded, I am curious wat of the two would be the best and how big should i cut/make the port, Also let me know if I mite need to make the box a lil bigger. ( i am also using 3/4 inch mdf) And should I have a baffle in between the subs or would one large box be best?

Box 1

height 19"

width 39.5"

depth 23"

Box 2

height 16"

width 39"

depth 35"

Any help would be appreciated.

Personally both boxes follow within their guidelines but I would go with Box 2 since it is bigger and the port size depends on what frequency that you want it tuned (between 30-35Hz.

[latorgator 0]

I am going to be building a box for my 2 15" btl fully loaded, I am curious wat of the two would be the best and how big should i cut/make the port, Also let me know if I mite need to make the box a lil bigger. ( i am also using 3/4 inch mdf) And should I have a baffle in between the subs or would one large box be best?

Box 1

height 19"

width 39.5"

depth 23"

Box 2

height 16"

width 39"

depth 35"

Any help would be appreciated.

Personally both boxes follow within their guidelines but I would go with Box 2 since it is bigger and the port size depends on what frequency that you want it tuned (between 30-35Hz.

If i wanted 32 hertz what would be the best size for the port and should i build it as two seperate boxes or one large box(no baffle)

[jcarter1885 995]

either build one big box and give each sub its own chamber or two different boxes, thats all personal preference. I have my subs all in the same chamber with no problem at all. the port should be 12-16 square inches of area per cubic foot of volume.

[BigCProductions99 21]

www.reboxcalc.com <--- Use That For A Rough Estimate, That Calculator Can Come Up With Strange Shit Sometimes, Though.

Edit: With That Much Power, A Smaller Medium Sized Box Would Probably Be Optimal.

Edited July 3, 2009 by BigCProductions99

[latorgator 0]

Ok thanks for everyones help.. So due you think like 4 cubic foot would be about optimal for 1 15" btl since I have alot of power.. and also wen you say 12-16 square inches of port per cubic foot how due i measure the ports cubic inch (sorry for the noobie question)

[BKOLFO4 29]

4 ft will work great. You need 55-60 sqin of port area. So H x W of the port = 55-60 sqin.

Figure out the port size, and then use a calculator to determine the length for the tuning you want.

Once you know the port H x W x L, you can determine the port displacement (how much volume it takes up in the box).

The Net volume (4 ft) + port displacement + driver displacement = the gross volume of the box.

The INTERNAL dimensions of the box should be sized according to the gross volume of the box.

Brian