I also posted this question under Mstering (Big Ben) Any help on this is appreciated. I have run a digital Studio for a couple of years using only a mackie clock card and am sold on the Apogee Big Ben as one worth the investment. I haven't upgraded much lately and am unsure about exactly how you clock gear like the Eclipse, TCFinalizer, Lexicon reverbs, etc. I originally added the digital card on the d8b giving me 2 pair IN/OUT digital (XLR and coaxial) and understand the slaving of the HDR and the d8b. I realize I can also tie in 6 digital FX boxes to Big Ben but I have always run all my FX through analog AUXes as there are no more digital intputs on the d8b. I guess my questions is, does it require an 8-IN digital card for the d8b? I seem to remember such an option. Do I then bus the FX internally to re-route them to the proper AUXes? I would doubt the clock has any impact on the FX if they are run analog to the d8b!!?? Anyway, any advice is greatly appreciated!