Anyone built or simulated? Take e.g. 42Hz bass horn (T=0) and bent it like Western Electric but mouth only 1 sq. meter. Use back side of 6-5" driver OR another driver(s) and form shorter horn connected to main horn - to smooth out peaks in response.
No. Classic expo horns with undersized mouth coupled by several drivers with different distance from throat. Or one driver with compound loading.
Um, that's what's supposed to be happening in a tapped horn, unless you have something completely difference in mind...