Burr Brown PCM1704 24-bit/96kHz external stereo DAC It is designed for PC studio use and so it takes in 12V DC power and will either plug into your power supply (via an included adapter) or an optional power supply. There is one coaxial and one optical input, but only one can be used at any given time. It will automatically detect the source. There are 1/4" plug audio outs (balanced), a stereo mini jack output, and two RCA outputs. Images: http://www.medwarrior.com/dac/ Please make a reasonable offer. I am also open to a trade or trade+cash where appropriate for a Canon EOS-3 body, Canon EF L lenses, or Dynaudio or JM Labs bookshelf speakers, etc. Feel free to email with any other trade or trade/cash suggestions as well. Alan Dang FiringSquad.com Please email [email protected] for more information.