2 15's box question???????

[Davo2378 0]

Hello all, i have a question about a box design, i have always had beat in all my cars but i have never built a box before so this is going to be my first one, and i was wondering if this design would work or not, its going to go in a 96 blazer. thanks alot

[stevemead08 752]

a general rule is 12-16 sq in of port per cu ft. of box volume. lets say 14 sq ft. per ft. would be about 84 inches of port. your at 36sq inches..

Also is seems a little small for two 15s ported. what drivers are you going to use? that will determine what size box and how much port you will need.

[Duran 387]

You need a TON more port, you have them modeled to run in a leaky sealed box, not a vented enclosure.

[Davo2378 0]

i will be running the new sa-15's

[Davo2378 0]

ok will the design of the box work if i get more port area

[Duran 387]

ok will the design of the box work if i get more port area

Yes it will.

[Davo2378 0]

New box design, dose this seem better?

[Duran 387]

I'd double that area if I were you, use this calculator http://www.carstereo.com/help/Articles.cfm?id=31

[sefugi 166]

I'm planning a build with a few of these subs and I'm hoping to give each sub approx. 70cu" of port per sub and from what I've been told that is still on the low side. Deffinately give them some more port area. Good Luck with your build and keep us up to date with what is going on with it.

[Argent Audio 54]

I'd double that area if I were you, use this calculator http://www.carstereo.com/help/Articles.cfm?id=31

This formula should also be taken in moderation too. There are many other things that play into port area, the most important: power. The best way to model port velocity is with WinISD.

Andrew

[Davo2378 0]

Duran that dosent really mean that much to me, it looks like it made the port smaller

[sefugi 166]

Duran that dosent really mean that much to me, it looks like it made the port smaller

Go recheck that info with a 20mm Xmax, i beleive that is the spec on the SA15 and that will give you a completely different answer. With what you showed, and a 20mm Xmax it showed min. area at about 145"

[Davo2378 0]

oh ok i see now yeah i didnt know the xmax for them, now 145 is the min port area i need for the box right?

[sefugi 166]

oh ok i see now yeah i didnt know the xmax for them, now 145 is the min port area i need for the box right?

That's what is shows, but remember that is for min. port area, and ported at 35 may be a little high for daily.

[sefugi 166]

What amp you gonna put on these??

[Davo2378 0]

the new saz-1500v.2, so i have some time to get the design the box before i start the build, like i said i have never built a box before and i dont really know how to figger it out or what i'm doing

Edited October 10, 2010 by Davo2378

[sefugi 166]

the new saz-1500v.2

Wired @ 1 ohm that should hit pretty good if you get the enclosure setup figured out like you want. Keep askin' questions and the answers will come, we all want the mostest from our setups.

[Davo2378 0]

yeah thats what i planned on doing

[Davo2378 0]

i'm starting to think i dont have room for 2 15's in the blazer

[Notorious97200 339]

Maybe you can try round flared ports ?

Ask Argent Audio or go to Part-express or Madisound for psp ports. You could save some space for your box.

It's what I did, and I like it !!!