how do i make this port

[kabosh 10+ year member]

Ok the dimensions are H=15 3/4 W=41 1/2 D= 27 3/4 in. That's sub facing up. The box is a lil too big I think so the port displacement will be good.

 

[T.I.K. 10+ year member]

Ok the dimensions are H=15 3/4 W=41 1/2 D= 27 3/4 in. That's sub facing up. The box is a lil too big I think so the port displacement will be good.

You wouldn't happen to drive an explorer would you? 41.5 is the exact dimension between the wheel wells in a 2nd gen explorer.

That box is 6.6ft^3 total(you said the whole box was double layered 3/4" MDF). What kind of sub(s) do you have? and what size and length are your aero ports?

 

[Bassman999 10+ year member]

You wouldn't happen to drive an explorer would you? 41.5 is the exact dimension between the wheel wells in a 2nd gen explorer.
That box is 6.6ft^3 total(you said the whole box was double layered 3/4" MDF). What kind of sub(s) do you have? and what size and length are your aero ports?

I came up with 7.03FT3 before ports sub(s) and bracing. I might have done something wrong?

**edited because I cant read lol

 

[T.I.K. 10+ year member]

I came up with 8.65 before ports sub(s) and bracing. I might have done something wrong?

OP said the whole box is double layer 3/4" MDF, so the wall thickness is 1.5" instead of .75"

 

[Bassman999 10+ year member]

OP said the whole box is double layer 3/4" MDF, so the wall thickness is 1.5" instead of .75"

Yeah just caught that.

I have 7.03 now gross

 

[T.I.K. 10+ year member]

Yeah just caught that.I have 7.03 now gross

me too, I must have left a decimal out somewhere.

 

[Oraclem19]

Yeah just caught that.I have 7.03 now gross

me too, I must have left a decimal out somewhere.

More sleep (or coffee/Red Bull) , less box calculations.

 

[kabosh 10+ year member]

So I want to just chop it up put a L port in and have it facing rear with sub facing up. Tuned to 28 hz to murder those lows. I have one OA18. Now tell me wjat iI need to do to get it tuned right.

Oh and yes it's a mountaineer. Weird thing is the box wasn't made for my sub lol.

I measured the port w, just measured across it... 6 1/4. Length is 7 3/4

 

[kabosh 10+ year member]

Now that I have the information u need plz dont forget about me I still need the port info lol

 

[kabosh 10+ year member]

OP said the whole box is double layer 3/4" MDF, so the wall thickness is 1.5" instead of .75"

So can u help me with the port dimensions

 

[Bassman999 10+ year member]

So can u help me with the port dimensions

Do you have any internal bracing?

If so please describe dimensions then bracing and driver disp can be deducted and get proper tuning.

 

[Bassman999 10+ year member]

port 12.75highx5.5wide

L1 20.75

L2 6

FB 28

this isnt taking into account for sub or port displacement, and is based on RE's box calculator....some say not the best.

 

[kabosh 10+ year member]

Which of these specs on the port should I be changing to get the tuning how I want? On re caclulator do I adjust port width or length to get the tuning I want? Its confusing

 

[Bassman999 10+ year member]

Which of these specs on the port should I be changing to get the tuning how I want? On re caclulator do I adjust port width or length to get the tuning I want? Its confusing

The longer the port the lower the tuning, also if you make the port narrower for a given length it will effectively lower tuning as well.

I hope someone that has bassbox will chime in and give you some help as well. My disc is lost after moving.

 

[kabosh 10+ year member]

The longer the port the lower the tuning, also if you make the port narrower for a given length it will effectively lower tuning as well.I hope someone that has bassbox will chime in and give you some help as well. My disc is lost after moving.

So when I put in the dimensions on RE calc, it says 6.6 cubic feet with a 1.5 in wide port. When i alter the port to get 32hz (7 inch wide, 8 in port L2, tell me if i should do that differently?) the cubic feet goes down to 4.9. Is that normal and ok? Doesnt seem to be counting any space inside the port so idk. This sub asks for about 6 cubic feet tuned 28-32