The Hall Technologies DAC-51 is a Digital to Analog Audio Decoder that utilizes 24 bit audio DSP and 192KHz DAC's to quickly convert almost any type of digital audio input to a stereo output. The DAC-51 fetaures uncompressed two channel PCM along with compressed multi-channel bitstream audio and provides two channels of analog outputs on RCA and the 3.5mm headphone jack. When the input is multi-channel the device down mixes the digital channels to 2 channel stereo for easy connection to entertainment devices. When the input audio is multichannel the unit intelligently combines Left Front, Left Rear, Right Front, Right Rear, Center and Subwoofer to create a 2 channel stereo output. Toslink optical, coaxial digital SPDIF inputs are provided letting the user select which input is to be used via the slide switch on the box.