I'm planning on putting in a 7.1 def tech system in my basement home theater. Since the speakers will have powered subs,(I know that I'll need to run power to all locations)should I run a separate LFE wire for the dedicated sub along with a speaker wire. Or, just plan on using just one speaker wire and set my av receiver to large? I plan on getting a Denon 5800. What's the best way to wire out of the Denon for all these LFE channels? Thanks for your help.