Has anyone here tried mounting a midbass driver from the front side of a (midbass) conical horn? That is, flush-mounting it on a baffle inside the horn, without a throat? I've seen a couple of designs like this, but I don't really know what the acoustic result would be. Examples: Meyer Sound MSL-4 (with optional phase plug removed); a questionable-looking old Peavey design with a stacked 2x10 format. The MSL-4 crossover point is fairly low at 800Hz, and I know nothing about the Peavey other than a visual reference.
Any input is appreciated!