Best used DAC around $500


Like the title says, does anyone have any recommendations for a DAC on the used market for around $500?

In my consideration list so far

California Audio Labs Alpha or Sigma DAC
Cambridge DAC Magic

Really open to any ideas, what im looking for is the most analog sound i can get from a DAC that is going to be fed digital streams from my Apple TV and my Pioneer ELITE BDP-05Fd

Thanks!
mikewoodkozar
I briefly owned the Bel Canto Dac2. While I thought it was a good sounding dac, it was easily bested by the PS Audio DLII. ANd as mentioned above, the DLIII does provide balanced output which takes it up a notch. Something I found annoying about the Bel Canto dac was the input and outputs on opposing sides. It was a pain to place in my rack. A minor quibble but it bugged me.
The PS Audio also offers USB input. I haven't used it but it's there.