Kinda stupid question I am sure, but this is the deal. I have an HK 130 reciever. I only have two tower speakers hooked up to it right now, as I cant afford the rest of the set. When I run DVD's they are all set to run at 5.1 for the most part. If I set my reciever to run 5.1 I get almost no sound ofcourse cause I am missing 3 speakers. Since I am running optical cable I only have the option of setting the reciever to vmax far or near. I believe this is the setting i want if I only have 2 speakers. Is this the optimal way of running things right now? Is this optical cable better than the RCA cable method?