Help with aero port length/ box design.

[E-Rock 10+ year member]

Since I will finally have a garage to work in for about 2 weeks this summer, I want to build my first box.

I want to build a box with aero ports since it is a smaller box and I feel like it will be easier.

The sub I have is an RE SE-X 10'' which will see about 600 RMS. I was going to build the box to have 1.7 ft^3 before displacement and tuned to 34hz.

I am just having a difficult time figuring out how long I should make the port length. And should I use 1 4'' port or 2 3'' ports? I tried using the Products Menu but I am confused about how long the ports should be and that will help determine my box dimensions.

I was also wondering about if it should be sub back/port back, sub back/ port side, etc... This will be going into a '06 Malibu trunk.

Please help me out.

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[Moble Enclosurs 10+ year member]

I can do the prints for you. I also just lowered my blueprint costs ;D. AND I also own a Malibu so I understand their limitations. Interested???

 

[Buck 5,000+ posts]

You can do 1 4", 2 3", or even 1 3" if the port becomes too long. Are you on psp-inc.com?

 

[E-Rock 10+ year member]

I can do the prints for you. I also just lowered my blueprint costs ;D. AND I also own a Malibu so I understand their limitations. Interested???

I may be interested. I'll send you a pm soon if I am.

I was really just confused with the port length and number of ports. If I set 2 3'' ports, and it gives me the # 17.6, then each port would be 8.8 inches long correct? Whereas 1 4'' port would be 14'' long?

I was also wondering about how much distance I would need between the wall and the internal port.

I assume that all I have to do is build a sealed box, then just cut some holes in it for the driver, ports and terminal.

 

[Moble Enclosurs 10+ year member]

I may be interested. I'll send you a pm soon if I am.
I was really just confused with the port length and number of ports. If I set 2 3'' ports, and it gives me the # 17.6, then each port would be 8.8 inches long correct? Whereas 1 4'' port would be 14'' long?

I was also wondering about how much distance I would need between the wall and the internal port.

I assume that all I have to do is build a sealed box, then just cut some holes in it for the driver, ports and terminal.

The distance of the end of the port to the wall can be the distance of the diameter of the port or more for keeping it simple and safe. So, if you are using a 4" aero, don't go closer than 4" to the internal perpendicular wall.

As far as building a sealed box and cutting a hole, nooooooooo. I mean, it will work, as any subwoofer box will. But it may not sound right if you do not use the calculations accurately. A lot can go into a sub box if you want a lot out of it. People have been lucky in the past, yes. But why take the chance of not having it do what you want. Cutoff may be too low, or too high and then you end up popping the subs from mech limits. Or, the box compresses the sub too much and you can't tell when you put too much power in it and pop it thermally (this tends to happen ore in bandpasses but any box can do this).

Better to have it done right the first time //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif Hope that helps!