If you can find one of these s/h they should be a bit of an ear opener.
I believe it used the next best Multibit ladder dac chip to the PCM1704 the just as good PCM1702, and HDCD is always a winner. And it does A to D conversion also as a bonus.
http://www.goodwinshighend.com/manufacturers/pacific_microsonics/pacific_microsonics_model_two.htm
Cheers George