You can set a two π loudspeaker on top of a seven π bass bin, and crossover at 100Hz - 200Hz. I built several models of seven π cornerhorns over the years, and some used a direct radiating midrange. They sound very nice done that way.But I think the π midhorn on these looks great. It isn't as imposing as you might think, particularly since the system is in the corner. That always seems to make a speaker much smaller than it really is, because it is out of the way. I think your wife would fall in love with the looks of it if she saw it.
The crossovers are similar, but the current version for the one with the midhorn is the best. Every subsystem is optimized so that it takes full advantage of corner loading, and crossover is seamless at each point, using a minimum of components.