Ok Lugia. I wish I could get my head around what you’re saying, I’m really trying, but with little success! Do you mean an ES3? Can you give me any examples?
-- clivevass
OK...on the back of the Fireface, you'll see some lightpipe ports (probably with little rubber covers to keep crap out of the optical path), probably labelled ADAT. That's where you'd connect any OTHER interface that ALSO has the same ports. So, once you've got the Fireface AND the inexpensive, used, and (for audio) "obsolete" DC-coupled interface you snagged on Reverb or eBay, you'd hook 'em up with a pair of lightpipe cables. There might be a sync lockup issue, but checking the Fireface's docs should help with that. Once the interfaces are happy and talking to each other (you should see the new I/O ports in the Fireface's control/routing app...when you do, everything's cool), you can assign the new ADAT ports to CV Tools' use.
Nope, no ES-3. Just do a little scrounging. and you can beat the cost on that thing. FYI, this IS how you'd hook the ES-3 up as well...but we're going "cheap-n-dirty" here, getting much the same result for about 1/3rd the price.