Cool.. Why are you using SPDIF. My understanding is this is the lesser of all digital connections. I thought the hierarchy went something like this:
1. i 2s
2. USB
3. Digital Coaxial
4 .Optical / SPDIF (same things right)
1. i 2s
2. USB
3. Digital Coaxial
4 .Optical / SPDIF (same things right)