The RBN601 ribbon driver features the unique “HempHorn.” This wave-guide is made of a new combination of composite materials with natural hemp fiber structures. In contrast to traditional glass fiber horns, the HempHorn features the same stiffness as conventional (glass fiber) horns, but is characterized with a much higher internal damping (at same weight). This results in a so-called “inaudible” waveguide, without the well-known “harsh horn sound”.