The Klipsch DNA, the hybrid Tractrix horn. The patented Tractrix geometry provides the most efficient transmission of high-frequency waves into the listening area. The phase plug and the compressed, shaped silicone surface ensure a consistent frequency response. This combination results in the cleanest and most natural sound available. The second generation of the Reference Premiere enlarges the horn for a wider soundstage and improved directional characteristics. It features an audiophile terminal and easily accessible aluminum clamps for all types of connections. The finishes include ebony and walnut vinyl with satin-finished baffles and a scratch-resistant surface.