The Zigen ZIG-DAC with Dolby® Digital & DTSTM 2.0 Decoder provides the ideal solution for converting a coaxial digital audio signal to analog stereo audio. It provides high quality sound conversion. The Dolby Digital & DTS 2.0 function guarantees that Dolby digital/DTS2.0 audio signals are down-mixed to analog stereo without loss of quality. This unit is perfect for use with HXL-88 and HXL-44 matrices routers.