My first dual 15 build

[CVLover]

Hello guys

ok so im gonna make a sub box. its a dual 15" box with either slots on each side of the box or ports on each side(2)

its gna be a big box tht is splitted inside at middle and im gna use a slot port or some 6" aero ports

as i said it is gna be splitted in half so. im thinking of using 2 6" aero ports per chamber

the totalt box in cubic is 5.77202, which is 2.88601 cubic feet per chamber.

ima list the specs of the box for you

Depth = 20" = 50.8 CM

Length = 40" = 101.6 CM

Height = 16" = 40.6 CM

if anyone know how to port a slot port to either 28-30HZ . please tell me

or of you know how to do it with 2 6" ports tell me

Thanks!

[RAM_Designs]

Box is too small. You'll have even less volume after taking into account sub and port displacements.

[Ray]

Aint tuning down that low with enough port.

Box is way to small

[CVLover]

Box is too small. You'll have even less volume after taking into account sub and port displacements.

ok i did some changes. the whole box total is 8.288 ft³ = 234.690 L

now each chamber has 4.14400 ft³ = 117.345 L

wil that be better? let me know:)

[CVLover]

Aint tuning down that low with enough port.

Box is way to small

ok i did some changes. the whole box total is 8.288 ft³ = 234.690 L

now each chamber has 4.14400 ft³ = 117.345 L

wil that be better? let me know:)

[t1990le]

Aint tuning down that low with enough port.

Box is way to small

ok i did some changes. the whole box total is 8.288 ft³ = 234.690 L

now each chamber has 4.14400 ft³ = 117.345 L

wil that be better? let me know:)

Why do you want to do dual chamber vs a common chamber?

[CVLover]

Aint tuning down that low with enough port.

Box is way to small

ok i did some changes. the whole box total is 8.288 ft³ = 234.690 L

now each chamber has 4.14400 ft³ = 117.345 L

wil that be better? let me know:)

Why do you want to do dual chamber vs a common chamber?

hmm.. i dont know whats the best. the subs i have needs like 110 liters and ive seen some dual 15" designs and they are splitted inhalf

will it sound better with just a big box and 2 6 inch ports?

[t1990le]

Just from basic human error, alot more can go wrong with a dual chamber. you are gonna want to have about 6 cu ft net for 2 15s. (3cu ft each) Then add port volume and add sub displacement. An good common number for a 15 would be about .18 each and you are gonna want about 84 square in of port area like a port thats 12 wide and 7 tall (7 x 12 = 84). To tune a box for 2 15s that is 6 cu ft net with that port you will need a port lenth of 29.25. Math: [29.25 x 7 x 12]/1728= port volume or .237 cu ft. add .237(port volume) + .38(displacement for both subs) + 6cu ft (box net) = 6.617cu ft. 6.617 is the number you are gonna try to get with internal dimensions (do not include the .75" of wood thickness into this or you will come up short.

[t1990le]

Depth = 20" = 50.8 CM

Length = 40" = 101.6 CM

Height = 16" = 40.6 CM

Depth = 20"

Length = 40"

Height = 17.5"

This will work if you can add that extra height.

Just build the above dimensions and build the port like i stated and you hould be good to go.

[CVLover]

Just from basic human error, alot more can go wrong with a dual chamber. you are gonna want to have about 6 cu ft net for 2 15s. (3cu ft each) Then add port volume and add sub displacement. An good common number for a 15 would be about .18 each and you are gonna want about 84 square in of port area like a port thats 12 wide and 7 tall (7 x 12 = 84). To tune a box for 2 15s that is 6 cu ft net with that port you will need a port lenth of 29.25. Math: [29.25 x 7 x 12]/1728= port volume or .237 cu ft. add .237(port volume) + .38(displacement for both subs) + 6cu ft (box net) = 6.617cu ft. 6.617 is the number you are gonna try to get with internal dimensions (do not include the .75" of wood thickness into this or you will come up short.

thank you. but i found a site that did it for me ima post it in a sec. but thanks!!!!