Thank you very much for the assistance!
I currently have the Firewire cable connected from the Fireface to the H8000 and then the PC. All appears to work under the following conditions:
1. The Eventide is configured with the Factory Preset Analogue A>B and I connect my Guitar and Mic straight into the Eventide. I then send the Analog outputs from the Eventide direct into the Fireface.
I tried setting the Eventide's routing to the Firewire A>B and plugged the Guitar and Mic straight into the Fireface but was not able to get any processed sound back to the Fireface.
I am with the feeling that I am missing something else (probably routing) but am about brain-fried with deciphering the Eventide Manual on Firewire routing. I will re-attack the manual later this evening…any thoughts? Thanks again!