Newbie here. I've searched and read a million posts or so about bass traps, but I haven't found the answer to my stupid question yet. So here goes: I've got a ton of extra "pink" rolls of R-13 insulation laying around. If I were to say take two layers of this and mash it down, fit it into a 2x4 frame and cover it with some sort of cloth, would this be anywhere near the same thing as using the OC-703 rigid insulation for a bass trap? thanks!