Fine many thanks guys!

I wonder also if it is possible to use the firewire connection on my setup since I have already a USB interface as the heart of my system.  I run it in ASIO and use Sonar Producer 8.5 on a PC.

I know it is not possible  (or don't know how!) to run two asio driver at the same time in Sonar but will I be able to send audio to and from the H8000fw via firewire (as extrenal loop) without conflictiong with my main interface, which is a VS700R?  

Thanks!