both your source and pre/pro have AES EBU connector digital input(110 Ohm looks like XLR) so use Wydeye 110 Ohm cable from Apogee electronics you can't go wrong I have compared it to the best SPDIF including the D-60 Illuminatti form Kimber and other MIT, Digital Link and soem other custom made super expensive cables, the best hands down is the Apogee for about $45 depend on length, with the rest of the money go to a live concert enjoy life, or a dinner out with your wife, or your gilrlfriend (not both).
Take care;
Gonzalo
Take care;
Gonzalo