JusCliq This Digital to Analog Audio Converter designed for either home or professional audio switching. It converts SPDIF or Toslink / Optical digital audio signals to analog L/R RCA audio and available for connection to an external device such as an amplifier. Power Adapter is included in package for additional stable performance. How it works: Simply plug in your Digital audio output source into the Coaxial or Toslink input jacks, then connect your Analog Signal receiving device through the RCA output jacks. Specifications: Digital Input Audio & PCM Output Audio. Signal Output = 2XRCA R/L Audio Connector. Input audio connector = Toslink + 1XRCA(Coaxial) Output audio connector. Toslink Audio and Digital Audio Operating Frequency = 32, 44, 96 and 148Khz