I like the design...4cuft after displacement. 47sqin port area tuned at 35hz.I feel its lacking in port area a little,but I'm no box designer either. Edit: As far as I know he models them as well but was an extra charge for the graph.
How accurate are these calculators? http://www.carstereo.com/help/Articles.cfm?id=31 I'm trying to learn box design on my own for my Zcon 15...sorry if this has been covered before.
I was trying to look back on a post I started awhile back that ALTON provided some info on for me an can't find it.SSF/LPF settings on bc2000d I think it was.ALTON explained setting SSF.