Thanks for the info.
I've been in contact with Gary Morrison from Plinius. He suggests that the source outputs are used if one wants to take advantage of the "DSP" modes on there processors/recievers.
I've also contacted Plinius USA inorder to find out about Canadian dealers or at the very least the closest American one. I have no reservations about ordering online but I would like to know for service issues where the unit can be sent in.
Cheers