Hi there, I have much music stored in uncompressed format on my computer. I woudl like to buy an interface that takes this digital data and converts it the best way to analog and the hooks up to my amplifier via RCA cables. I only need it for playback and not recording and obviously I only need 2 channels. What device should I get? I was looking at the Edirol UA-1EX but they don't even list the signal to noise ratio or dynamic range. What are the best D/A converters and whcih devices have them built in? Any suggestions are much appreciated. Thank you.