I have a 2 year old Rotel (don't remember model) that has both DD and DTS. Because the crossover is fixed and too high I am using Paradigms external crossover for my sub and running out of the mains. I have turned the LFE channel off in the setup but wondered if I'm going to be losing anything by doing this. When you turn the LFE off does it send any LFE only signal to the mains? My front speakers are set to large with the center and surrounds let to small. The Rotel has two pre-outs and an input for the front channels so I run one output to the crossover and the other output to the input with a cap designed to roll those speakers off at their optimum point.