I need help on building a box for my 18

[playyamxz550 10+ year member]

I made another post before nobody responded I wanted to build a box 7.5 cubic ft before displacement and tune it around 35hz and then add in everything which i no will change the tuning alittle now i got like 36L22H23W something small like that does that sound like a 7.5 cubic ft box, if anyone has any basic slot ported out the back sub facing up desigins, im also willing to pay now someone please get back to me

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[basscort2009 5,000+ posts]

its about 7-7.3 depending on how big of port you use and what u tune it to

 

[GeekSquad 10+ year member]

What kind of 18 is it? You don't have 7 cubic feet there, no matter what box you build. Depending on the EBP of the sub though, you may be able to go with a smaller sealed enclosure and still get low bass.

 

[playyamxz550 10+ year member]

its a dc level 4 xl and i dont do sealed lol

 

[cheeseburger35 10+ year member]

What kind of 18 is it? You don't have 7 cubic feet there, no matter what box you build. Depending on the EBP of the sub though, you may be able to go with a smaller sealed enclosure and still get low bass.

are you really an idiot? or did you read a speaker book memorize some words and acronyms and think you can give advice now?

 

[db138]

You don't have 7 cubic feet there, no matter what box you build

//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif 36x22x23 is 10.5 ft^3

 

[hispls 5,000+ posts]

//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif 36x22x23 is 10.5 ft^3

10.5 gross. Figure a cube and a half for 1.5 sheets of 3/4 and bracing. Then knock out another cube and a half to 2 cube for port displacement and it's about 7-7.5 cube.

If you have all that space, use it. Keep in mind if you have the port too close to a wall inside your cabin it won't function properly. I could do up a cutsheet for you if you have EXACT outside dimensions.