The IOCrest SY-AUD60011 Digital to Analog Audio Converter is designed for home and professional audio switching. Switch from Coaxial or Optical (Toslink) digital audio signals to analog audio by connecting RCA-style jacks or A/V jacks and external sound devices such as amplifier, speakers and etc. to the converter. This digital to analog audio converter provides crisp and clear audio quality projected on loud speakers or systems.