Now I will give you my viewpoint ... I am almost sure that the Sabaj A20 sends much more than 50W under 8R, I place it side by side with my Hypex NC252MP which delivers 2X 150W / 8R along with the Sabaj does not blush whatsoever. Commonly called a corner-horn speaker, the remarkably uncommon Klipschorn includes a highly effective horn-loaded tweet