I'm looking into a way to fit my XV-5080 with an 8 channel 24-bit digital audio output, and things aren't looking promising since—for that capability—all it has is an r-bus port. There's currently a DIF-AT24 on ebay ... for $500. But there does exist the RPC-1 PCI card, which should work in my OS 9 G4. However, I would like to take the r-bus input on that card and route it to an adat output somehow. I'm not sure what my options are for that, if there are any. I doubt it's possible to juggle more than one audio interface from differing manufacturers. Is there anything that can be done about that option?