WinIsd for 6th order ?

[Fish Chris]

So I put in my 18" ZVX, and tried to model it in a 6th order. I was shooting for really deep extension, like to 20 hz before it sharply dropped off, and good bass in the 65 to 90hz range also, with a pretty big dip at around 58 hz.... My cabin gain peak.

 

Kept getting a big peak above 58 hz... a wider dip at 58 hz than Id prefer, and although the output was very flat and nice between say 50 and 20hz.... it was not very loud ? 

 

If somebody wants to play with this sub in WinIsd just for fun, plz do, and see if you can do any better than I did. Thank you.