Hi,
I’ve being using the following D.BOB (Digital BreakOut Box) with an Oppo BDP-103, allowing full-resolution playback of Blue-Ray’s, DVD’s, and SACD’s.
The Oppo connects to the D.BOB via an HDMI cable, and a Coax cable to the PSAudio Directstream DAC.
I also had SACD in DSD mode. That was the issue. Interesting.
Bootzilla is correct. It is digital. We run everything analog through a high quality A/D converter which makes the architecture inside easier to deal with in such a small space.
Ok, here’s where I’m at -
i2s board for Oppo - Ordered
GainCell DAC - Ordered (used)
Wife - Not speaking to me…again 
Congratulations and, as they say on Headfi.org, “sorry for your wallet!”