You might want to have a look at the Audio-GD DAC-19:
http://www.audio-gd.com/Pro/dac/DAC19/DAC19EN.htm
I have the DAC-19MK3, which is the predecessor of the DAC-19, before I bought the DAC-19MK3, I had a ZeroDAC, which I compared to the DACmagic, I ended up keeping the ZeroDAC which sound better, in comparing the ZeroDAC to the DAC-19MK3, the latter was considerably better...