First, I've read the 4th order thread...more than once, lol.
Second, Parts Express isn't selling the dats right now, for who knows how long.
Third, the "woofer tester" is about half the money of a imsg. If I was going to get the wt, I might as well get the imsg but I don't want to spend that much right now.
So my questions are, how do I know what to tune my ported chamber to? 8 sa-12's, 1 cuft sealed each, 3 cuft ported. Is the sealed side resonant frequency different in my vehicle compared to a different vehicle with the same encloser?