Some sync problems. I have an Alesis keyboard with ADAT out. If I set the synths master ans SFP slave, everything works perfect. But vice versa, and I hear only awful noise! Should I need use BNC word clock cable for that?
I'd need that because I want at the same time use a guitar that is connected to SPDIF in my preamp doesn't allow to be used as slave

(Actually I haven't RTFM, but haven't found any option)
Is it possible at all to use SPDIF and ADAT at the same time?
How I should set the sync if I add an digital mixer to my setup...?