I got it to work, so here's the deal in case anyone else has trouble setting Foobar v0.8.3 up with a new sound card. In Foobar under Preferences > Playback > Output > Asio (dll version) you have to select your card in the "Output" selection, AND change the "Shift Output channels" selection to correspond with the output channel on your particular card. In my case for the RME Digi 9652 the s/pdif output channel happens to be located at 24. When I went to 25 I got a Foobar error message, and at anything less than 24 had no sound. With the EMU 0404 USB the "Shift Output channels" had to be set at 2 for it to function.
It was worth the expense and effort. The clarity, detail, imaging, soundstage, all very noticeably improved. There also had been some slight fuzziness or distortion noticeable at times with the EMU which is now gone.