This Digital to Analog Audio Converter converts Digital Coaxial or Digital Optical (Toslink) audio signals into stereo analog audio signals for connection to an external device, such as an a/5(). Overview this digital to analog audio converter is designed for either home or professional audio switching. It converts coaxial or optical (to slink) digital audio signals to analog l/r audio signals for connection to an external device, such as an amplifier, via standard race-style jacks. This /5(). A good digital-to-analog converter (or DAC) can make all the difference when listening to music, especially through headphones. We've talked about why they're so great, and how to choose a good one before, but this week we're looking at five of the best, based on your nominations.