Help with PR parameters

[sheik]

I am trying to input a passive radiator into WinISD alpha and being a total newb to this subwoofer design, i can't seem to figure a couple of things out.

I am trying to input these:
Sd 308 cm^2
Fp 16 Hz
Mms 226 gr
Cms 0.43 mm/N
Vap 56 l
Q 3
Xsus 22mm one way

Low and behold, I don't exactly have all that. Could someone lead me in the proper direction. I have read and searched but haven't found anything that is clear on how to get the proper numbers in to the PR section of WinISD.

TIA,

[simon5]

When you open a New Project and Box Type: Passive Radiator, WinISD asks for five parameters for the passive radiator.

Vas, Qms, Fs, Sd and Xmax.

Vap is another name for Vas, they use p instead of s because it's the Vas of a passive radiator, so you enter 56 liters there.

Fp is another name for Fs, same as above, enter 16 Hz there.

Xsus is another name for Xmax, same as above, enter 22 mm there.

I suppose that Q in your specs refer to Qms, so enter 3 there.

Sd is given in your specs, so enter 308 cm^3 there.

You cannot save these settings, you need to re-enter them if you exit the program and you want to start a new project with the same passive radiator. You can only save active drivers AFAIK, please correct me if I'm wrong. But you can save your project, so you don't lose the parameters you entered if you want to continue to play with the same project.

Did I answer correctly your question?

[sheik]

that was perfect Simon5, exactly what I needed.
I see I have much to learn. but I found the right place!!
Thanx