Hi. I am a newer member here. I have been doing some reading on full range driver speaker plans including Voigt pipes, folded pipes, open baffles, and bass reflex speakers. I was looking over some speaker plans on the Lii Audio website and found a large bookshelf design that looks similar to folded pipe designs that I have seen before. But this one is much shorter, as it is not a floorstander. The top is also angled downward at the sides. Does anyone know about the principles behind this approach in a bookshelf speaker rather than using a common bass port? Thanks for the help.
