Hi, I have a housing at the moment see picture 1, but I want to convert this housing to variant see picture 2! can I just put another sound wall on the previous one to put the subsection in the middle then next to the BR tube, then to draw a frame to sub and BR tube, the whole then to the ski bag opening and on picture 2 the brown-pointed foam material or something, so I want to seal the housing at the back bench. what it’s about, the housing is with pin felt, can I just stick the second sound wall on it and screw it or must the needle felt be removed in between, I mean, I didn’t save on kraftglue I think I can’t get that anymore… if the sub is screwed in, will it be sealed or?