Wouldn't the loudspeaker designs that have small(ish drivers on a tall narrow front, and large woofers on the sides not potentially provide all the required qualities? i.e. narrow front for less edge dispersion (so better imaging) combined with bass units in a wide baffle for deep bass and slam?
In theory this design should have all the qualities that everyone posting on this thread seems to want.
If I'm being a bit naïve be kind to me, I don't normally post on anything technical, due to a paucity of required grey matter