sub box question

[wannabelowrider]

Does any place make a dual 10" ported box that's 30" wide max. Anything wider will run into my cylinders in my trunk. I'm trying to find a box that'll fit on the trunk shelf and clear my 4 x 10's. I know I know, I should ditch the 4 x 10's but I wanna see how my system sounds before I start changing shit out. Oh btw its on an '83 Regal

[cl1965ss]

I could probally design something for you. What kind of subs and could you post a pic of your trunk. I have a 83 regal and i know that it is a tight fit to get anything in there.

[wannabelowrider]

I was looking online for a box but couldn't find one. I scored one at a flea market but unsure of the cu. ft.

[cl1965ss]

I was looking online for a box but couldn't find one. I scored one at a flea market but unsure of the cu. ft.

Good luck, if ya need anything hit me up.

[wannabelowrider]

Good luck, if ya need anything hit me up.

Thanks bro I appreciate the help. I'll keep u in mind.

[79 cutty]

I was looking online for a box but couldn't find one. I scored one at a flea market but unsure of the cu. ft.

If you are unsure of the total cu ft just figure it out. Easy enough to do....just take measurements of the inside dimensions in the box.

(Length x Width x Depth)/1728

If it is a ported box it becomes a little more involved, but for the most part that will give you a rough cubic footage

[wannabelowrider]

Cool, I'll check it out a little later. Thanks Cutty.

[79 cutty]

No problem.

[wannabelowrider]

What's that white fill stuff do for the sound?

[79 cutty]

What's that white fill stuff do for the sound?

It's Poly fill. It makes the subwoofer act like it is in a larger enclosure than it really is.

[wannabelowrider]

It's Poly fill. It makes the subwoofer act like it is in a larger enclosure than it really is.

That might help with my application since my box is a bit smaller. Is it all the same or is there anything particular I should look for when shopping?

[79 cutty]

You just want to buy Polyfill. Can find it on basically any online car audio dealers site.

[wannabelowrider]

You just want to buy Polyfill. Can find it on basically any online car audio dealers site.

[Aubrey2007]

A I guess so

[wannabelowrider]

If you are unsure of the total cu ft just figure it out. Easy enough to do....just take measurements of the inside dimensions in the box.

(Length x Width x Depth)/1728

If it is a ported box it becomes a little more involved, but for the most part that will give you a rough cubic footage

How do I put inches in decimal form to figure out cubic feet?

[79 cutty]

you don't need to put it into decimal form. For instance if your box was 12.5" x 28" x 18" you just do the math like so:

(12.5 x 28 x 18)/1728 which equals 6300/1728

which then equals 3.646 or in other words your box would be 3.646 cu ft.

a 1 cu ft box is 12 x 12 x 12 or (1728)

So essentially what you are doing is taking the area you have, and dividing it by 1 cu ft.

Hope that makes sense and clears it up

[79 cutty]

If you are asking how you would put something like 8 11/16" into decimal form then all you have to do is divide.

11/16=.6875

so you would have 8.6875"

[wannabelowrider]

See I thought so but didn't wanna sound like an idiot if I was wrong. I measured the inside of my box but measured only one chamber. I have the measurements written down at home. Am I supposed to measure the entire box or just one chamber at a time? BTW its ported down the middle between both chambers. Sorry for the noob questions.

[79 cutty]

You need to take the entire inside dimensions. If it is one big chamber just do as mentioned above....if the box is seperated into the two chambers it is probably safe to assume they are the same size so you would just multiply your length by two and that should be close. You aren't really going to get exact cu ft unless you measure each chamber individually, but you are just looking to get a rough idea of the cu ft you are working with and if it is sufficient for your needs.

[wannabelowrider]

Coo thanks Cutty. Imma check it out after work. I'm just curious on cu ft since subs have a recommended area. I will be using poly-fill more than likely too so. Oh yea, what a good size speaker wire I should use when wiring my subs to the box terminals then to the amp?