Dipole Ribbon with Front Horn?

Would mounting a horn on the front of a dipole ribbon cancel the positive attributes of dipole? Seems it would, but curious to know if anyone has experience with this or know of someone who has, and what their findings were.

Thought that got me here: the ribbon drivers I've seen have a natural roll-off at the bottom end, which negates their sensitivity.. when used in a dipole configuration, but can be lifted with a properly designed horn. I love the depth of sound from a dipole. Can I have my cake and eat it too??