The Wall and it is almost certainly the Jordan VTL. If I remember right, it has a slightly offset driver but otherwise identical.
MJ Acoustics makes a commercial version and the page has a link to a review from HiFi News.
FWIW, I have heard both a triangular 48" MLTL and the VTL in a side by side comparison. The MLTL goes deeper but requires BSC to match the fuller tone of the VTL. A wider front MLTL might address that. They both sound good. Having seen MLSSA measurements of both, I wouldn't worry too much about the computer sims. They look much worse than the VTL sounded.
sixmoons.com has also written about and reviewed the Konus, another commercial version of the VTL.