It will be impossible to build a super sub with a noob case. Granted the case is good but the way the crystal mounts is different. There is a visible ledge underneath around the edge of the crystal on a gen. The noob does not have that. Instead it looks like a plastic white ring. To me this is a dead give away.
To get this ledge you need a WM9 (any version and also BK versions), Euromariner or MBK.