rebuilding box pic included

[tobio 0]

hey guys, building a new box for my 18" btl, as the old one wasnt done right

and was my first build so yeh,

here are the specs, just wanted to run them by you guys before I go off and start. cheers

[Kanaworm$ 292]

What kind of box program is that?

[tobio 0]

What kind of box program is that?

ah its the exposport one, from SMD

Torres' (ExpoSport) Box Tuning Calculator UPDATED 3/10 - SMD Forum

[tobio 0]

no comments?

[jcarter1885 995]

It hasnt been an hour yet, calm down dude. Site is usually slow during the day but you will get some responses soon.

[tobio 0]

It hasnt been an hour yet, calm down dude. Site is usually slow during the day but you will get some responses soon.

LOLLL. thanks jaycee and soz i guess my patience isnt as good as it could be

waaaiiit a second! dont u go anywhere, ure an audio pro so u can help

[jcarter1885 995]

No Im not far from it, Im still a beginner at this whole box stuff so I dont feel my advice or info would help much

[ralstonballa2413 20]

Is that 35hz the frequency you are looking to tune it to? Youre doing a double baffle, right? Are you doing any bracing inside also or just the double baffle? You may want to try to go a little larger on the port area. Are you using any wall of the box as one of your port walls?

[tobio 0]

Is that 35hz the frequency you are looking to tune it to? Youre doing a double baffle, right? Are you doing any bracing inside also or just the double baffle? You may want to try to go a little larger on the port area. Are you using any wall of the box as one of your port walls?

well im really looking for more like 32hz, but dont know how to get it

yes there will be an extra baffle cos i dont think 1 3/4" mdf sheet can hold the 18" btl haha, i have 2 on my current box

no bracing

see i just dont know exactly what measurement is which

is this the right measurement structure?

[ralstonballa2413 20]

Is that 35hz the frequency you are looking to tune it to? Youre doing a double baffle, right? Are you doing any bracing inside also or just the double baffle? You may want to try to go a little larger on the port area. Are you using any wall of the box as one of your port walls?

well im really looking for more like 32hz, but dont know how to get it

yes there will be an extra baffle cos i dont think 1 3/4" mdf sheet can hold the 18" btl haha, i have 2 on my current box

no bracing

see i just dont know exactly what measurement is which

is this the right measurement structure?

You want to know the deminsions for the port? Your H would be the height of the port ( not what you have labled ). The W is correct how you have it labled. The L is partially right but in your drawing it would be L+H not just L. In your current design you will not have a bend like that and it would be nice to know if you are going to use a wall as a port wall or if you are going to center it in the box. Using part of the wall as a port wall would be like what you currently have. You may want to look into atleast adding 45's in it like you have in the picture of the box. To get 32hz you will need to change the length of the port, but I can't tell you exactly how long until you say if you are using part of the wall as or port and if you are going to do a little more bracing or not ( The BTL is heavy so you should really consider it ).