Thanks to those folks who helped me with finding a preamp that would have SPDIF digital outs. I'm using an Aardvark Q10 and I want to make use of the two SPDIF-in tracks available on the unit. Here's the rub .... Say I decided to buy two separate preamps, just for sake of argument a Focusrite Trackmaster (with optional card) and a PreSonus Digitube. They both have an RCA-type output jack for SPDIF out. My Aardvark Q10 has only 1 input jack. How would I be able to use the two separate pres at the same time? If I wanted access to both digital-in tracks on the Aardvark at the same time would I have to have a single unit, dual-channel pre like a TL Audio 5051 or Focusrite Twin Track (with optional cards)? Or is there some way of combining the two digital output signals? Please don't tell me I'd have to buy a Yamaha O1V or some other digital mixer!