So I did a quick search and didn't find too much on this stuff. I've seen it used a lot, but never actually tried myself.
Just been thinking about the box for my death penalties and how to port them. From what I've gathered, they love their port, and really need it to keep from ripping the soft parts.
That being said, I've considered the idea of 1 big port instead of multiple little ones.. more efficient.
Just based off of rough calculations from xplicit's app, I've come up with a 41W x 21 T x 25 D, 1^3 ft for displacements, and a 12" sonotube ~20 inches long.
~8.3' net, ~34 hz, ~13."5 port/cube. This will be a dual 15 box, subs up port back loading off of my hatch in the Jeep.
My only thing is, with sonotube that long, surely I would need to strengthen it and probably brace it. Is there anything else I should be looking at besides resin and glass? I had planned on trying to load another square divider in there horizontally to help support the middle and tail end of the tube. I figured it would also help to brace the baffles as well. As for actual bracing I had planned on some threaded rods front to back and possibly side to side if needed.
I know a lot of you guys have experience with this. Any advice is appreciated.