I have heard that an aperiodic vent will give a sealed sub a bit more low end extension, but no one seems to know how to model them except with trial and error. I also doubt it would get you to the low 20's.What would that vent do exactly? If sealed is what I have to do to get down to the lower 20's without exploding, that's fine I guess.
Yeah, post #44 above has that plot. It is in a larger box but they look almost identical. Where the dark line crosses the red line is where the driver has overexcursion. As you can see it is always well within the mechanical limits.No, I meant just a 4.23 sealed set up, with out any of the PR's just to see the response vs. excursion.