Optical To Coaxial Digital Audio Converter. Perfect For Home Theater, Dolby Digital And Dts. Run Out Of Toslink Inputs On Your Receiver? This Optical To Coaxial Converter Will Allow You To Connect The Toslink Optical Output From Your Dvd, Cable Or Satellite Receiver To A Coaxial Digital Audio Input. Don'T Buy A New Receiver - Simply Change Media Formats And Get Full Digital Signal Sound Quality.