Enclosure questions

[X3FBrian]

I have an 05 explorer with quite a bit of room in the back. I have zero box building experience and I have 4 comp vr 15s and a kx2400.1 amp that I just purchased. I stumbled upon a site that had a nice box for what I want and it had all the cuts and build plans but I can't find it anymore and I've spent the last hour trying to find it. It looked like it was pretty simple and laid out for even a novice builder. Any ideas what it was? Or anyone know something similar? Thanks

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[Jeffdachef 5,000+ posts]

No clue, the site I know, the largest enclosure does not have enough space for 4 15s. Whats your max dimensions(keep in mind you'll need a few inches for the port to breath)?

Also what tuning do you want it? What car?

we can do a simple round port so you are just making a square box and cutting holes for a couple of 10 inch sonotubes to fit in instead of making a lot of cuts with slot ports.

 

[X3FBrian]

It's a 2005 explorer. The sealed box I was going to make was 43" wide x 33" deep x 18" tall. Not sure about tuning. I like low bass so 34 hz?

 

[Jeffdachef 5,000+ posts]

It's a 2005 explorer. The sealed box I was going to make was 43" wide x 33" deep x 18" tall. Not sure about tuning. I like low bass so 34 hz?

can you make it any bigger, you'll have less than optimum airspace after displacement which can impact lows.

22.5 height would be perfect and give you 3.5 cubic feet usable for each sub.

 

[X3FBrian]

Hey after removing my third row seating which is almost useless anyways I can go 24" tall pretty easily. SO my max measurements are 44" wide by 33" deep by 24" tall. If I did my math correctly that's a 20 cu. ft box. yikes

 

[CSCStang]

Hey after removing my third row seating which is almost useless anyways I can go 24" tall pretty easily. SO my max measurements are 44" wide by 33" deep by 24" tall. If I did my math correctly that's a 20 cu. ft box. yikes

44x24x33 is 17.43 gross cuft. Are you set on a sealed with all 4?

 

[X3FBrian]

I prefer vented. I thought the formula was length x width x height / 1726?

 

[Jeffdachef 5,000+ posts]

I prefer vented. I thought the formula was length x width x height / 1726?

You subtract 1.5 from each due to thickness of 3/4 mdf. Then you multiply.

Got an easy box for you 23.5 height X 44 width and 33 depth. Two 10 inch sonotubes at 15 inch length will give you 33hz tuning, plenty of port area for a round port. 15 cubic feet net after sub and port displacement. Assuming you will brace the box with a lot of bracing. Its 15.25 cubes without bracing.

 

[X3FBrian]

I'm new to this. You give cut sheets and schematics? If it's simple I'm in. Where do I get the tubes?

 

[Jeffdachef 5,000+ posts]

I'm new to this. You give cut sheets and schematics? If it's simple I'm in. Where do I get the tubes?

Google up sonotube Home depot around 7 to 10 bucks for 10 inches.

cutsheet here, you can use this to figure the inches for bracing. Also you want to use a double baffle so glue two of the fronts together

http://imgur.com/RlquzxC

For suvs subs up, port back

 

[X3FBrian]

I googled it and got this: SAKRETE 10 in. x 48 in. Concrete Form Tube-65470006 - The Home Depot

I would just cut that to 15" long and cut a 10" circle in the box and install it how?

Also you say the ports need to be firing backwards? Seems they wouldn't have much room to breathe, the box is going to take up pretty much all of the cargo space.

 

[Jeffdachef 5,000+ posts]

I googled it and got this: SAKRETE 10 in. x 48 in. Concrete Form Tube-65470006 - The Home Depot
I would just cut that to 15" long and cut a 10" circle in the box and install it how?

Also you say the ports need to be firing backwards? Seems they wouldn't have much room to breathe, the box is going to take up pretty much all of the cargo space.

So we can have a depth of 29 and the length of the port will be 19 instead tuned to 34 hz. 12 cubic feet, net so 3 cubes per 15, not optimal but space issues is space issues

 

[X3FBrian]

Is there something wrong with having the ports firing upwards like the subs?

 

[Jeffdachef 5,000+ posts]

Is there something wrong with having the ports firing upwards like the subs?

Not as loud or low.

 

[X3FBrian]

Ah ok, could you update that cut sheet for me for the new dimensions then? Also whats the best placement and method of installing the sono tube? Thanks for helping