Seem like a good idea?

[JG903 10+ year member]

Maybe if I actually had the sd and BL it'd change the response?

Yes I did find it odd that it had nothing there. That is what is throwing it off. Maybe that is why it won't let me save it.

 

[JG903 10+ year member]

I got the parameters in WinISD. I had to let it calculate all of the values in order for me to save it. I tried the 6th order specs you gave and the graph was reasonable and normal. Although a ported box had a better and higher response.