I am Building a sealed box for a single Phoenix Gold Xmax 12". How do I determine what is sufficient bracing? (i thought 1x1 or 2x2's)When constructing what should i use on the joints to seal air tight? also, the box is most likyl going to around 1.2 cubic ft, how much ploy-fill should i start testing with?

love this forum

thanks,

wkr

maybe am wrong about "ployfill" but my owners manual says "line wall with 3" of polyester fill, can anyone clear this up?

thanks will reed