I just put the figures for the k-pro 10" into pialign, I get ~10 litres/0.368 cu feet and the dimensions 17.2x8.6x4.3". If making a corner horn out of this, it would become 3 times deeper, with the last third forming a right angle. That's a pretty compact corner horn. With a wooden horn on top, I think we have something I could sell into the living room:)Granted I did my homework properly AND the kappa pro 10's provide some bass extension:) this could be good.
Thanks,
Roland