I do have the Mac drivers installed and I am currently running the 5.5 beta on Snow Leopard.

But, what I don't understand is, say I have the unit hooked up only via Firewire and selected one of the Firewire routing options. Within Logic/Ableton, how do I send a signal to the unit and back? For example, if I have ADAT hooked up, Ch.9,10 etc are allotted to ADAT etc.

Do I have to have the Eventide as my primary soundcard to route signals to/fro via Firewire?

Thanks.